IIS Support Blog
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- Posts
- 547 from 16 Nov 2018 to 25 Oct 2026
- Posting
- monthly (10 in the last year)
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- company blog
2026 8
- Enterprise Deployment Architecture for Agentic AI on IIS: ChatGPT-Style UI over Agents & MCP Servers
- Enterprise Deployment Architecture for Agentic AI: ChatGPT-Style UI on IIS over Agents & MCP Servers
- Transforming Enterprise Documents into AI Knowledge with Agentic RAG
- Troubleshooting the IIS Shared Configuration “Cannot Connect to the Specified Path” Error
- Understanding IIS Website Limits: Connection Timeout, Bandwidth, and Connection Limits
- How to Add an Adaptive Card in Microsoft 365 Agent SDK
- Let's Create Our First Microsoft 365 Agent SDK using Python - For Single Tenant
- Resolving Weak SSL Ciphers in .NET Framework 4.5
2025 25
- Azure Bot Identity | Application with identifier 'x' was not found in the directory 'Bot Framework'
- Addressing .Net EOL installations for Windows Admins
- Why Does an Old Certificate Reappear After Reboot in Azure VMs?
- Troubleshooting File Upload Error: 413 Request Body Too Large in .NET Core
- Enabling Client Certificate Authentication for an Application Inside Default Web Site
- Identifying and Blocking Python-httpx Requests
- Troubleshooting SSL Certificate Issues in Reverse Proxy
- Troubleshooting IIS Admin Service Termination: “Invalid Signature” Error
- Capture .NET Memory Dump on Linux
- Customizing Temporary File Paths in ASP.NET Applications
- From Hello to Secure: The SSL/TLS Handshake Explained Like a Conversation
- Why Port 87 Works in IE and Curl but Fails in Edge and Chrome: Understanding ERR_UNSAFE_PORT
- How to Set Up SSL on IIS
- Mutual Authentication in IIS
- Addressing TLS 1.3 Compatibility Issues in IIS Express on Windows 11
- Script Engine Exception. A ScriptEngine threw exception 'C0000005'
- Managing IIS in PowerShell 7: Fixing Get-IISAppPool & Get-IISSite Issues
- Memory leak from improper usage of Microsoft.Extensions.Configuration APIs in .NET on Windows
- Disable Local Authentication in Azure bot
- Error creating Azure BOT: Failed to store new BOT
- Modern Authentication (Oauth/OIDC)
- How to Properly Configure IIS Reverse Proxy for ASP.NET Core Applications Secured with Entra ID
- Service Tags for Azure Bot: Simplifying IP Management
- Using cURL for isolation of Web related issues
- Hosting Azure Bot SDK C# on Azure Kubernetes Service (AKS)
2024 54
- Crash Dump Collection
- HTTPS Redirection and Reverse Proxy with URL Rewrite
- Navigating Azure Bot Networking: Key Considerations for Privatization
- How to Introduce Custom Delay Between Two Messages in Azure Bot Composer
- Troubleshooting IIS 500 Errors Using httpErrors
- How to fix HTTP Error 500.37 - ASP.NET Core app failed to start within the startup time limit error
- HTTP Error 500.30 - ASP.NET Core App Failed to Start: Root Cause and Solutions
- CPU Management in IIS Application Pools: A Deep Dive into Advanced Settings for Optimal Performance
- Creating a Custom Policy to Check Last Activity on Azure Bot Channel
- Uploading Files and Sending data using HttpClient: A Simple Guide
- Capture Circular ProcMon Logs for an intermittent issue
- How to Encrypt the web.config’s Identity Section in IIS
- Capture First Chance Exceptions Using Debug Diagnostic Tool
- Configuring CORS in IIS with the IIS CORS Module: A Step-by-Step Guide
- Custom Handlers to remove unwanted HTTP Headers in IIS for ASP.NET Framework Applications
- Encrypting and Decrypting sensitive Information in ASP.NET Core
- Understanding IIS Handlers
- How to Configure and Collect Schannel and CAPI2 Logs
- Understanding HTTP Status Code 304 Not Modified Response and Output Caching Feature in IIS
- High Memory Usage or Memory Leaks in Web Applications: Understanding and Data Collections
- Capture a Network Trace : Wireshark
- High CPU Consumption in IIS Worker Processes
- HTTP 500 Internal Server Errors: Understanding and Log Collection for Effective Analysis
- Understanding ASP.NET Core Data Protection Warnings: Causes, Solutions and Best Practices
- Modify unwanted HTTP/IIS headers using custom module for .NET Core
- Active mode FTP fails to work when connecting over the internet using FTP.EXE
- Cookie Less Session in ASP.NET
- Hosting 32-bit Applications in IIS on a 64-bit Platform: A Step-by-Step Guide
- Remove unwanted HTTP/IIS headers using custom module for .NET Framework
- Manged Modules and Custom Modules in IIS
- Fetching Windows Auth User ID Issue in Python Flask Application on IIS with HttpPlatformHandler
- Application Initialization in IIS
- How to fix Failed to Load API Definition error in SwaggerUI when hosting an ASP.NET Core API in IIS
- Application Pool Does Not Recycle at Defined Conditions
- Identifying the SDK Version in an Azure Bot Project: V3 or V4?
- Azure bot as skill to PVA
- How to Enable IIS and Key Features on Windows Server: A Step-by-Step Guide
- How to Resolve HTTP Error 500.35: ASP.NET Core Application Pool Conflicts on IIS
- Event ID 5186 from Windows Activation Services (WAS)
- How to Backup and Restore a Website in IIS Using Web Deploy: A Step-by-Step Guide
- Understanding and Resolving the HTTP Error 503 Service Unavailable Error in IIS
- Understanding and Resolving the HTTP 413 (Request Entity Too Large) in IIS
- PerfView: ASP.NET Core Stats View
- IIS URL Rewrite Rule Not Working: Resolving 'HTTP Error 404.4 - Not Found' Issues.
- Create a New HTTPS Website in IIS using PowerShell script
- FTP: 530-User cannot log in, home directory inaccessible. Error and solution.
- Azure Bot Directline channel vs Directline speech channel
- PVA and Azure bot
- Challenges in Uploading Files Over 2GB via HTTP Protocol in IIS Web Server
- Port 80 Occupied???
- The process was terminated due to an internal error in the .NET Runtime at IP 00007FFBFBEE2CAD.
- Windows Server 2022 IIS web site TLS 1.3 does not work with client certificate authentication
- customsd controls event log ChannelAccess and causing IIS ARR module unable to register
- Azure QnA Maker- Activating Dialog at the same time using branch switch choices
2023 24
- ASP.NET Temp file accumulation on server
- HTTP Request Smuggling in Microsoft IIS Server
- Content Security Vulnerability in ASP.NET(WebForms)
- IIS Short name Enumeration
- IIS manager GUI not working (Method not found)
- Static Constructor Exceptions: A Rare Culprit That Requires App Restarts
- Hosting ASP.Net Core application in AKS in Linux Container with Troubleshooting and Data Collection
- ASP.NET Core: 503 Server has been shutdown
- How to capture network traces on Azure App Services (Windows & Linux)
- Azure B2C Signout (AADB2C90272: the id_token_hint parameter has not been specified in the request)
- WAS service was unable to start with error "Cannot create a file when that file already exists."
- Access to XMLHttpRequest from origin has been blocked by CORS policy
- Event ID:42 and Event ID:43 - Value does not fall within the expected range.
- “The description for Event ID 1 from source GetAccess IIS Runtime cannot be found.”
- 503 Service Unavailable error (The Module DLL <path-to-DLL> failed to load. The data is the error)
- Capturing Perfview for Classic Asp Web Application hosted on IIS
- Auditing Scenarios for Web Application Hosted in IIS - Part 4 - Files being written to folder
- Auditing Scenarios for Web Application Hosted in IIS - Part 3 - Website deleted
- Auditing Scenarios for Web Application Hosted in IIS - Part 2 - Permissions changed on Folder
- Auditing Scenarios for Web Application Hosted in IIS - Part 1 - SSL Binding Modified
- Private Endpoint & Direct Line App Service Extension Configuration with Bot Services and App Service
- Azure Web PubSub : Request failing with Http Error 500 for Azure functions
- The Strange Case of inetmgr.exe.config
- Azure App Service & ASP.NET Core 3.1 500.30 - One odd cause
2022 14
- Using Procdump to generate dumps on a specific .net core exception
- ConfigurationErrorsException due to targetFramework mismatch
- A quick guide to publish Python SDK Azure Bots in App Service
- Certification Authority not showing up in IIS Server Certificates Dialog
- How to Troubleshoot WAS Fails to Start - Error 1326: The user name or password is incorrect
- Updating web.config file for ASP.NET Core apps hosted on a Linux App Service
- Capturing dotnet trace for app service
- Capturing Dump using DbgHost.exe and Failed Request Tracing
- Event ID:7022 - Net.MSmq, Net.Tcp and Net.Pipe "Start Pending /Automatic (Delayed Start)”
- Direct Line App Service extension disconnect issues
- How to remove a HTTP module using PowerShell in IIS
- ASP.NET Thread Usage on IIS 7.5, IIS 7.0, and IIS 6.0
- The loghttp module in the worker process with id 'xxxx' could not obtain custom log data for '1' req
- Users get intermittent credential prompt on client browser when using IIS Windows Authentication
2021 44
- Object identifier does not represent a valid object
- DefaultAzureCredential failed to retrieve a token
- Connection closed by remote host
- Status Code 400.0.64
- Invalid Content-Length
- Page Cannot Be Displayed Error - Troubleshooting Guide
- ARR Configuration for backend sites with SNI binding on IIS
- Cannot use prefix with empty namespace URI
- Kernel-mode and user-mode caching
- Memory dumps to study a high-CPU performance issue
- Memory dumps to study a memory-leak performance issue
- Memory dumps for hang or performance issues, "automated" approach
- Memory dumps for hang or performance issues, "manual" approach
- Memory dumps at process termination, with optional first-chance dump
- WAS service unable to start with the error 'the data is invalid'
- IIS Admin Service failed to start with 'Class not registered' error
- IIS Admin Service unable to start - How and Why it can happen?
- 401 1 2148074248 in IIS logs behind a load balancer with multiple servers
- 403.16 error : "Root certificate which is not trusted by the trust provider. (0x800b0109)"
- WCF service doesn’t accept files over 64 KB
- Event ID 2269 (HTTP.SYS communication error)
- BREACH vulnerability
- INET_E_RESOURCE_NOT_FOUND error
- 417 Expectation Failed error
- Failed Request Tracing is not creating logs
- Remove folder/application names from URLs
- Block an IP address accessing the application
- 3 simple ways to collect data for asp.net core applications post publishing to production
- Capturing DebugDiag dumps for a specific method/function call
- Setting up Client Certificate Authentication for WCF Service hosted as an Azure Web App
- Disable proxy output for /jsdebug or /js endpoint of WCF service consumed using Javascript or Ajax
- Collect memory dumps for a first-chance exception, when it occurs
- Timeout Issue Caused by Idle Time-Out Action
- Keyset does not exist
- Application Request Routing is Missing in IIS Manager
- 401 Custom Error Page Breaks Windows Authentication
- The data is invalid error
- Collect traces of first-chance exceptions occurring in app
- Memory dumps at process termination caused by second-chance exception
- About exceptions and capturing them with dumps
- Publish Azure Bot Framework Composer Bot to already existing Resource Group.
- Windows 10 Device Guard and Credential Guard Demystified
- Azure Government Bot through Bot Composer
- ASP.Net Core Application process failed to start due to Anti-virus scanning
2020 60
- ASP.NET ActiveDirectoryMembershipProvider and port 445 (SMB)
- How to change notification text when bot sends an adaptive card in Microsoft Teams?
- “Metadata contains a Reference cannot be resolved” error for WCF service
- Web Management Service issue (2147483656)
- System.Security.Cryptography.CryptographicException: The payload was invalid
- Underpinnings of Bot analytics
- Duplicate collection entry of type (0x800700b7)
- CLSID failed (800700b7)
- W3C Logging Service failure (ID 6005)
- Unexpected end of file has occurred
- AspNetInitClrHostFailureModule (0x80131704 – 2148734724)
- Enabling Bot Telemetry for Application Insights
- How bots work
- MIME type mismatch error after enabling the HTTP response header “X-Content-Type-Options”
- HTTP response 503 Service Unavailable from IIS: one common generic cause
- How to find the password of IIS custom service account via command line?
- ANCM not reading “ASPNETCORE_ENVIRONMENT” variable from local environment.
- Checking the certificate trust chain for an HTTPS endpoint
- The request is not supported (0x80070032)
- MachineKeys folder fills up quickly
- Custom Error Page vulnerability
- Web.config file maximum size and count
- Bad method token error
- Checking the FTP Sub status logged can help find the cause of problems.
- Event ID 7023: The Windows Process Activation Service terminated
- Web Deploy issue ERROR_CONNECTION_TERMINATED
- Timer_MinBytesPerSecond in HTTP.SYS logs
- Set up a public page in Windows Authentication protected website
- Nuget package for System.Net.Http on .NET Framework 4.7.2
- The missing Server Hello in TLS handshake
- Crash at System.Web.LegacyAspNetSynchronizationContext.CallCallback
- HTTP OPTIONS and Default page vulnerabilities
- Difference between SignalR unit and instance and SignalR pricing
- Certificate is missing in IIS binding window
- Perfview Command for Capturing Automated High CPU Dumps
- Web page with a PowerApps iframe keeps loading
- 500 Internal Server Error when accessing the root folder
- Event ID 15300 (SSL Certificate Settings deleted)
- 404 Page Not Found error even though the page exists
- Reading a FREB log, a Failed Request Tracing: IIS request processing pipeline execution
- ARR authenticating itself to backend with client certificate on re-routing requests
- IIS Client Certificate Authentication results in 401-Unauthorized for sub-applications
- ARR: change the hostname on re-routing to backend node the requests
- Publishing Azure Bot Services to MS teams Store/ Publish your Azure Bot Service for Teams
- Use specific processors in IIS (Processor Affinity)
- “advancedLogging cannot be added” error
- ASP.NET Session has expired (SSRS environment)
- Protocol violation (Section=ResponseStatusLine)
- How to collect dotnet core app dumps from Linux and analyze dumps on Linux
- The IIS Management Console Connection Pane doesn't show any sites I have created
- SameSite in code for your ASP.net applications
- SameSite=Lax in the new world
- SameSite cookie updates in ASP.net, or how the .Net Framework from December changed my cookie usage.
- Changes in SameSite Cookie in ASP.NET/Core and How it Impacts the Browser (Specifically Chrome)
- Bot Channels Registration: where is the Secret/Password for the Application ID?
- Troubleshooting Performance Problems related to Application Domains reloading
- W3C Logging Service stopping due to sysmon driver
- W3C Logging services goes in to the Stop state automatically
- HTTP Strict Transport Security Protocol (HSTS)
- SSL certificate occasionally disappears from HTTPS binding
2019 247
- Updating DOM elements with JQuery following partial postbacks from Update Panels in ASP.net webforms
- MSVCR71.dll is missing
- Error 2146893818 (Event 7024 Invalid Signature)
- 0x800f0922 Update IIS-RequestMonitor failed
- Make ports 80 and 443 listened in IIS server
- Disallowed Parent Path
- IIS reset issue (Restart attempt failed)
- Host Header Vulnerability
- Windows Process Activation error (NetFx40_IIS)
- IIS binding limit (401.2 error)
- Manage IIS locally with a non-admin account
- Anti-forgery token and anti-forgery cookie related issues
- System.UriFormatException
- Issue with Advanced Logging creating logs
- Troubleshooting IIS apps: one structured approach
- IISRESET internals
- FTP user isolation failing with access denied
- The file has not been pre-compiled error and solution
- Request based versus Session based Kerberos Authentication (or the AuthPersistNonNTLM parameter)
- Using FREB to generate a dump on a long running request
- runAllManagedModulesForAllRequests is conflicting with skipManagedModules and taking precedence
- How to use Azure file share in IIS Shared Configuration?
- Using URL Re-write in IIS to change Content-Disposition Headers
- Error: Rewrite/globalRules cannot be read
- How to use X-Forwarded-For header to log actual client IP address?
- Create & Setup a bot with the Bot Framework SDK for JavaScript - Azure Bot Services
- Error checking availability. Cannot reach Bot Framework Service
- How to migrate a website using Web Deploy
- OutOfMemoryException issue
- 403.16 error: “Client certificate is untrusted or invalid”
- IIS and Url-Rewrite: rewriting the outbound response contents
- IIS acting as reverse proxy: Where the problems start
- Setup IIS with URL Rewrite as a reverse proxy for real world apps
- RDS WebAccess Role failure because of missing website with error 0x800f0922
- WmSvc.exe access issue while migrating sites using webdeploy tool
- IIS output cache for particular VD without affecting other VDs sharing same physical/virtual path
- Collect basics, configuration and logs, when troubleshooting IIS
- Could not reach the Web Deploy endpoint
- Missing net.tcp, net.pipe, net.msmq, and msmq.formatname bindings in IIS
- Connection string encryption and decryption
- Background threads in ASP.net applications (Part 2 – threading side effects)
- Background threads in ASP.net applications (Part 1 – the concept application)
- Perfmon for IIS and ASP.NET
- Application pool gets recycled due to anti-virus?
- ASP.net segment heap sizes – or how much virtual memory my web-app will need
- IIS web-servers running in Windows Azure may reveal their private IP for certain requests.
- The complete list of changes to make to activate Client Certificate Mapping on IIS using Active Dire
- ‘Keyset does not exist’ followed by 'Value does not fall within the expected range' exception
- 400 Error in ASP.NET Core Project because of 8 KB cookie limit in Angular
- Just a simple redirect ASPX page
- About HTTPS, SChannel, TLS, CAPI, SSL Certificates and their keys
- How to run Python Application on IIS that uses Flask Framework and Wfastcgi
- How to create an app registration in Azure AD for a bot solution
- 550 supply message incomplete error (FTPS file upload)
- ADO.NET Database Pool Exhaustion issue
- How to take an HTTP trace from the client
- IIS logs current active logs timestamp shows 00:00:00
- "Windows could not start Windows Process Activation services on Local Computer. Error 193 0x1."
- System.UnauthorizedAccessException
- HTTP TRACK and TRACE verbs
- Fusion Log Viewer (fuslogvw.exe)
- Logging for ASP.net CORE applications when you receive 502.3 and 500 status codes
- Putting it all together – CORS tutorial
- Building the ASP.net Core WebAPI backend – CORS tutorial
- Building the ASP.net Core Razor Pages site – CORS tutorial
- Setting up CORS request with Windows Integrated Authentication and ASP.net CORE
- Using RSCA to help you understand what your IIS server requests are doing
- IIS Dynamic Compression and new Dynamic Compression features in IIS 10
- An unhandled win32 exception occurred in w3wp.exe
- Requests from the user-agent Edge+Health+Probe
- February 2019 uptades breaks Windows Authentication
- WMSVC (Web Management Service) Failing to start with "Access Denied" or error code '5' on WS2019
- “Object doesn't support property or method 'find'" error when using Microsoft Bot WebChat in IE11
- Microsoft Bot WebChat window / font not matching well in iPhone/iPad/Android phone
- WAS Event ID 5082
- SChannel error state 960 (TLS fatal error code 20)
- Session state and session cookies best practices
- The issue of generating a new session ID after postbacks
- System.Net.HttpClient Design Guidance
- Configuring Username and Password for Centralized Certificates module in IIS
- Performance Counters for Monitoring IIS
- IIS custom application pool identity issue
- The default short date format for English (Canada)
- Centralized Certificate Store (CCS) and IIS bindings
- Windows Admin Center and 503 Service Unavailable error
- IIS certificate goes missing after every reboot
- Root Cause Analysis for CryptographicException error
- Solution for “Request Entity Too Large” error
- Solution for “Static compression is being disabled” error
- Solutions for “IDX10311 RequireNonce is true” error
- FTP over SSL - Data channel port range change does not take affect until restarting the FTP Service
- IIS application pool may be terminated when capturing a manual memory dump
- Troubleshooting TLS / SSL communication problems when making HTTP web request in ASP.NET Part 3
- Troubleshooting TLS / SSL communication problems when making HTTP web request in ASP.NET Part 2
- Troubleshooting TLS / SSL communication problems when making HTTP web request in ASP.NET Part 1
- DebugDiag 2 Update 3 RTW
- Modifying the .NET CLR ThreadPool Settings for ASP.NET 4.x
- IIS 8.5 and onwards – How to log client port number
- Bot components: roles, diagrams, overview
- Installing server certificates manually in IIS
- Large file upload failure for Web application calling WCF service – 413 Request entity too large
- Error HRESULT: 0x80070520 when adding SSL binding in IIS
- Central Certificate Store (CCS) with IIS
- Disable Client Certificate Revocation (CRL) Check on IIS
- SSL/TLS Alert Protocol and the Alert Codes
- Using DebugDiag to capture memory dumps on First Chance Exception
- Debugging Heap corruption with Application Verifier and Debugdiag
- Capture a Network Trace without installing anything (& capture a network trace of a reboot)
- Getting better stack traces in Process Monitor / Process Explorer
- IIS 7+ Kerberos authentication failure: KRB_AP_ERR_MODIFIED
- SSL Bindings are randomly getting deleted for a website with error "SSL Certificate Settings deleted
- SHA-256 Self Signed Certificate for Windows Server 2012 R2
- Remove Unwanted HTTP Response Headers
- How to Convert Date and Time field in IIS log from UTC to Local Server Time
- IIS logs 500.19 if a client drops connection while loading the website
- FTP “530 User cannot log in” error and solution
- High CPU usage caused by using the same HttpClient instance
- WCF Applications and TLS 1.2
- Windows could not start the IIS Admin Service on Local Computer -error code -2146893818
- Basic Steps for Making a Process Monitor (ProcMon) Capture
- IIS7.x: A Common Mistake when reinstalling IIS 7.x – errors 0x80070490 and 0x80070002
- Anonymous PUT in WebDAV on IIS 7+ deprecated
- CRL checking by IIS
- SSL Bindings are randomly getting deleted for a website
- Required permissions when calling a Web service using client certificate for authentication
- FTP changes not taking effect in IIS 7.0?
- You get a Security Alert when you try to access an SSL enabled web site when certificate has been is
- How to achieve a feature similar to single logon for multiple web applications using Basic authentic
- IIS ADMIN service fail to start?
- Client Certificate revisited….How to troubleshoot client certificate related issues
- Accessing Request.CurrentExecutionFilePath property in Response.Redirect Vs Server.Transfer methods
- Getting little deeper: How ASP.Net Forms based authentication flows…
- 403.7 and 500 Client Certificate Authentication Errors-IIS
- Troubleshooting Windows Azure Pack Portal issues and data collection
- Error while running/starting a Website under IISExpress in Visual Studio
- Application Request Routing – Part 2(Reverse Proxy and Troubleshooting ARR, URLRewrite Issues)
- Application Request Routing and URL Rewrite – PART 1(Server Farms)
- URL Rewrite- Part 3(Outbound Rules & Rewrite Maps)
- URL Rewrite- Part 2(Inbound Rules)
- URL Rewrite- Part 1(Prerequisites)
- Setting up Kerberos Authentication for a Website in IIS
- SSL Troubleshooting-TROUBLESHOOTING STEPS FOR SERVER SIDE SSL PROBLEMS
- Why cant I see windows authentication and anonymous authentication in IIS authentication section
- NTLM!!!!!!! want to know how it works!!!!!!!!!
- All About Kerberos “The Three Headed Dog” with respect to IIS and Sql
- Using the same encryption used by ADMembershipProvider to encrypt secret password Answer
- ASP.NET Tips: How to identify a COM call that is blocking GC, causing a memory leak
- Making an Asynchronous Call using the Impersonation Identity
- Understanding when to use a Finalizer in your .NET class
- ASP.NET Tips: Looking at the finalization queue
- IIS 7.0 HTTP Error Pages
- IIS7 – Adding your UI extension to the IIS manager hierarchy
- IIS7 – Writing your first custom UI module with all winform controls
- Time vs. Time-Taken fields in IIS logging
- Removing an IIS server’s IP address from HTTP responses
- “ASN1 bad tag value met” error when processing a certificate request in IIS 7
- Service Principal Name (SPN) checklist for Kerberos authentication with IIS 7.0/7.5
- How to troubleshoot HTTP 400 errors
- Why can’t I execute two requests from the same session simultaneously for an ASP.NET application?
- Issue with ActiveDirectoryMembershipProvider and account lock policy
- Issue with publishing web-site as non-updatable with "Use Fixed Naming and Single Page Assembly
- SSL stops working in IIS7
- WebBaseEvent.Raise method fails in Application_Start event with a NullReferenceException on IIS 7.0
- ASP.net Hang in IIS 7.0
- HTTP 400 Bad Request when client sends invalid HTTP:Host header value
- HTTP 400 Bad Request when client terminates request headers improperly
- Internet Explorer resets the TCP connection after receiving an HTTP response from IIS
- ASP.NET – AJAX functionality not working on the page | Getting ‘Sys’ is undefined
- High Memory due to System.WeakReference
- 3 Simple Steps for Configuring an SPN for your Website
- Troubleshooting System.OutOfMemoryExceptions in ASP.NET
- Troubleshooting a simple error message using FREB
- Troubleshooting service startup issues with Process Monitor
- Intermittently System.Web.HttpExceptions(A field or property with the name ’<columnName> ‘ was not f
- Getting access denied error when querying for user Roles using Authorization Role Manager
- How to Add a Locked Header Row to an ASP.NET GridView Control
- Troubleshooting HTTP 401.3 errors with Process Monitor
- “Parser Error Message: This implementation is not part of the Windows Platform FIPS validated crypto
- Getting the Sys.WebForms.PageRequestManagerParserErrorException while making an AJAX callback
- In-Proc Session State Management
- IIS7 (and above) – Using FREB to capture dumps for a long running request
- Using ProcDump.exe to monitor w3wp.exe for CPU spikes
- Deadlock when storing Asp.net sessions in SQL server during peak load
- High memory in IIS due to scriptproxy.dll
- Configuring DebugDiag to Automatically Capture a Full User Dump on a Managed Function
- Configuring FTP 7.5 with Host Header and SSL
- 64 bit IIS manager,32 bit worker process and root web.config settings
- A Not So Common Root Cause for 503 Service Unavailable
- ASP 500 Error and Error Code 0x800700aa when browsing a simple .asp page
- Troubleshooting HTTP 500.19 Errors in IIS 7
- IIS 7.5 – How to enable IIS Configuration Auditing?
- Unexpected 401.1 error over Windows Integrated Authentication on IIS 7.5 website
- !address -summary explained
- Configuring Many-to-One Client Certificate Mappings for IIS 7/7.5
- System.TypeLoadException for System.ServiceModel.Activation.HttpModule in ASP.NET 4
- MSDeploy – Changing the ConnectionString parameter in web.config after deploying the package
- HOWTO: Load all the symbols in a memory dump using DebugDiag 2.0
- Revisiting FTP Basics
- Centralized Certificate Store and SNI in IIS through Powershell
- Query FTP site information in IIS 7.X through Powershell
- Usage of System.Security.Cryptography.X509Certificates to display valid certificates
- Simple steps in migration of Websites using WebDeploy
- Web Deployment through Visual Studio
- Query the active worker process information in IIS 7.X using Powershell
- Error: The ‘validation’ attribute is invalid. Enum must be one of MD5, SHA1, 3DES, AES
- Antivirus Exclusion List for ASP.NET applications hosted on IIS
- PDB Downloader
- Keyset does not exist ( exception from HRESULT : 0x8009000D) or or 0x80090016 or 0x80090005 while ch
- Slow Response Automated Data Collection using FREB and debug diag
- Session Loss due to Application Domain recycle- Basics
- Session Loss due to Application Domain Recycle-Advanced
- Data Collection for Deadlock Detected issue of a IIS based web application
- Session State Is Lost in Web Farm If You Use SqlServer or StateServer Session Mode
- IIS FTP with ASP.NET membership authentication
- Capturing Perfview traces for ASPNET Core application
- Deploy the ASPNET Core App on Linux and Capture Perfview traces
- An error occurred : Failed to find any azure subscriptions for the current user
- Securing the ARRAffinity Cookie
- IIS on Nano server in a Hyper-V Virtual machine
- Log Parser - Identifying DOS attacks from IIS Logs
- “No such host is known” error in Visual Studio
- Configuration file related errors in a shared IIS environment
- w3wp.exe crash (Exception code: 0xc0000005)
- 413 Request Entity Too Large when connecting to a WCF service
- Integrating Windows Azure Pack with AAD
- SPN configurations for Kerberos Authentication – A quick reference
- Cannot perform CAS Asserts error
- AppFabric Caching Service crashes (Event ID: 111)
- w3wp.exe crashes periodically (Error 0xc0000374)
- Kerberos authPersistNonNTLM authentication, request based vs. session based authentication
- Are you seeing 401’s too often for HTTP web requests?
- How to use SPNs when you configure Web applications that are hosted on Internet Information Services
- Windows Authentication HTTP Request Flow in IIS
- Setting up Kerberos Authentication for a Website in IIS
- All About Kerberos “The Three Headed Dog” with respect to IIS and Sql
- Client Certificate Authentication (Part 2)
- Client Certificate Authentication (Part 1)
- Solution for “Access to the path inetsrv is denied” error
- PageMethods is not returning a value
- Web App access Sys file share code Access denied error when the app is hosted on Windows 2016 server
- "the specified file cannot be decrypted" and error code "0x80071771" when renew certificate
- 401 and infinite loop of user credentials prompt
- System.Net.HttpWebRequest 401 caused by LoopbackCheck
- w3wp.exe crashes with C0000005 at HttpResponse.Flush
- w3wp.exe crashes with C0000005 when HTTP Headers are modified after UpdateRequestCach event
- HTTP 503 with “Trying to read configuration data from file” error message
- Using a single port for IIS FTP in passive mode
2018 71
- overrideModeDefault and allowDefinition attributes
- Event ID 5059 (Application pool has been disabled)
- Bot Template Project fails at publishing after several times publish from VS.Net
- Embedded WebChat control could use WebSocket or Polling randomly with DirectLine
- How to publish Bot app to Azure using az botservice extension
- Web App down if there is a private bytes limit of the app pool and upgraded to .Net Framework 4.7.2
- Invoke SetModuleContext without breaking IIS 10 logs
- Issue: IIS logs 200 status code instead of 404
- How to prevent web.config files to be overwritten by config files in application subfolders
- How to log client IP when IIS is load balanced: the X-Forwarded-For Header (XFF)
- FIPS compliant machinekey section for IIS Application
- Forcing IIS to write logs (HTTP and FTP)
- How to programmatically determine if a user is authorized in an IIS Website
- Powershell ISE crashes on exit while using Microsoft.Web.Management.dll
- Enabling “Transfer-encoding: chunked” in the response header with IIS
- How to remove NEGOTIATE from IIS Windows Authentication
- Server object error 'ASP 0177 : 8000ffff'
- IIS Manager shows Authorization warning when testing a Physical Path
- Binding a Certificate in IIS using C# and Powershell
- IIS Services: HTTP.sys, W3SVC, WAS, W3WP, oh my!
- Hunting Down a Classic Error: "Page Cannot be Displayed"
- ARR Health Check sends too many requests too soon defying the configured interval
- Binding Multiple Sites With Single SSL Certificate
- SSL Certificate Disappears After Binding into IIS site
- A fatal error occurred when attempting to access the SSL server credential private key: 0x8009030d
- Should I worry about Timer_ConnectionIdle entries in HTTPERR Log?
- How to set hostname during SSL binding in IIS7
- How to call a SSL web page programmatically
- Asp.net performance counters not showing up
- RIA Services: The road to Open-Source
- Silverlight Support Roadmap
- Upload and Download files from Azure Storage
- Upload and Download files from OneDrive
- How to disable SSL 2.0 or SSL 3.0 from IIS Server
- Suppress WAS Warnings Due to Regular IIS Application Pool Recycling
- Hosting multiple websites: IP or Host Headers?
- Can't play PlayReady DRM video after installing Silverlight Update 5.1.31010
- Configure a WCF Service with SSL and consume from Silverlight via HTTPS(including cross-domain scenario)
- Passing multiple values in a Where clause when calling RIA services from Silverlight
- Breakpoint not hitting in a Silverlight RIA Application
- Installing RIA and Silverlight Developer Runtime without Visual Studio
- Missing [RoundtripOriginal()] for key properties in RIA auto-generated code causing RIA entity update failure
- Data Size limit causing Silverlight "Not Found" error when communicating with backend WCF Service
- Set HttpWebRequest.KeepAlive = false to workaround issue casued by HttpWebRequest using a closed socket in very specific scenarios
- Internet Explorer continuously prompts for installing Silverlight when it is already installed
- Fixing a Corrupted Silverlight Installation
- How to manually clean up a broken Silverlight installation in Windows 8
- What are required for Silverlight Application that requires Elevated trust
- How to authenticate with ADSF in Silverlight 5 Application
- If silverlight application in SharePoint Server 2013 AppPart cannot call WCF service in the same SPS2013 site
- Silverlight: How to remove Mac OS X Mavericks Safari 6.1 sandbox restrictions for Silverlight enabled websites
- WCF Chunking
- Custom WCF Streaming
- Working with WorkFlow Services
- Capturing WCF Request Execution Time
- Capturing Memory Dumps on Long Running WCF Requests
- Troubleshooting Performance Issues in Web Application
- FAQ on NP .NET Profiler
- Use System.Net Trace and SSL Alert Protocol to troubleshoot SSL connection issue.
- Additional Information about Silverlight Client Timeout Value when calling a WCF WebService
- List of blog posts on NP .NET Profiler
- Launching Windows Store App under a Debugger
- Capturing Unhandled Exception Dump
- Troubleshooting Memory Leaks in Windows Store Apps
- Troubleshooting Performance Issues in Windows Store Apps
- FAQ on Profiling Windows Store Apps
- Profiling Visual Studio Development Web Server
- HowTo: Access a WCF RIA DomainService from a WPF client
- Silverlight 5 Business Application Project losing intellisense in Visual Studio 2012
- How to resolve “Not Found” Error in Silverlight for WCF RIA Services Calls
- Out of memory issue when Silverlight Application talks to WCF service using System.Net.Socket via Duplex Channel