User Context (cs-username) Not Logged in IIS log file After Migrating from .NET Framework to .NET 8 Web API
After migrating .NET Framework Web API to .NET 8, you noticed that the user context (cs-username) is no longer being logged in the IIS log file. In .NET Framework Web API, I'm using FormsAuthenticationTicket to set the user context in Global.asax…
.NET Runtime
How can I use BinaryFormatter in .net 8 application
I'm migrating .net application from .net 4.7.2 to .net 8. I had used BinaryFormatter for serialization and deserialization in my application but it is obsolete in .net 8. Still I want to use binaryFormatter in upgraded .net 8 application temporarily…
.NET Runtime
How to register .net 8 build activex so that test program can run access it from different folder
I can run C:\Windows\syswow64\regsvr32 to register my activex.dll which is stored at the C:\Program Files (x86)\AA but the test program, test.exe, could not access it from C: \Program Files (x86)\BB folder. Any thought?
.NET Runtime

Is there something I can do to change all this?
I have a 2022 HP PC with 4Gb RAM and it's very slow. Sometimes it can freeze for a long time and it works at it's own time. It really doesn't do well with the internet.
.NET Runtime
I am unable to upload a file using azure-blob js sdk given a sas token
When trying to upload via JS, I get this error: RestError: Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature. RequestId:a441c1f7-001e-0021-2b0b-bad5b1000000 Why? Here is…
.NET Runtime
After upgrading MsBuild to 17.12.6 and VS to Net9 SDK, MSBuild failing with MSB4244 "The SDK resolver assembly {path} could not be loaded"
I have an app that compiles the full suite of my projects using MSBuild and since updating to 17.12.6 and net9, any project referencing an SDK (custom or Microsoft.Net.Sdk) is failing with the error The SDK resolver assembly "C:\Program…
.NET Runtime
Is Farpoint 16.2.0 supported in .net 8 or not
Is Farpoint 16.2.0 is supported in .net 8 or not as I'm getting invalid license in my .net 8 application. Also tell me how can I use farpoint related features in .net 8 application.
.NET Runtime
Server Error in '/' Application Web.config
HI I need this problem solution. If anybody have this solution then pls reply to it. Runtime Error Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the…
ASP.NET
.NET Runtime
License for the Spread.Net V16 EN is not found. Application execution is terminated.
I have installed Spread.net V16.2.0 within Mescius software. And using farpoint.win.dll, farpoint.win.spread.dll in my application by adding reference from C:\Program Files (x86)\MESCIUS\Spread.NET 16\Windows Forms\v16.2.20231.0\bin path. I am…
.NET Runtime
Response.Write PDF page by page to avoid timeout excepction
Hello, everybody I have a page which Response.Content is "application/pdf" This PDF is returned by a lot of api requests putting files together in an unique Byte Array variable. Sometimes, the return could last too much time and pdf file could…
.NET Runtime
IP blocked from accessing Microsoft services via .NET HttpClient
Hello, Since today, April 24th, I'm experiencing connectivity issues to most Microsoft services from my public fix IP address given by my hosting provider. Specifically, with dotnet tools (dotnet add package, dotnet restore, or actually anything that…
.NET Runtime
Implementing OIDC client in ASP.NET Framework 4.8 application
Hi, We have our ASP.NET web application which has been developed using .Net Framework 4.8. We have done the authentication using WS Feb (Auth0). It has been configured in Web.Config. I would like to change it to OIDC. Kindly suggest how it can be…
.NET Runtime
Will .net8 support 32 bit Application when built on "Any CPU" Configuration
I am not able to run an application that is built on "Any CPU" configuration in 32 bit OS, but if i explicitly provide the architecture as x86 the application works properly. Will .net8 still support 32 bit application when built on "Any…
.NET Runtime

Azure SignalR "Handshake Cancelled" Error During WebSocket Connection — How to Debug and Resolve?
Hi everyone, I'm facing an issue while connecting to Azure SignalR using a .NET 8 app. The connection consistently fails during the WebSocket handshake. 📋 Environment: .NET Version: 8.0 Azure SignalR Client Library: Microsoft.Azure.SignalR Transport…
.NET Runtime
Kudu/SCM Failure on Azure Functions Flex Consumption - Deployment Blocked (404)
Update [Date - e.g., 2025-04-27]: We have since successfully migrated the application to the Classic Consumption plan, where Kudu/SCM is accessible and deployment works as expected (after resolving separate build/runtime issues detailed elsewhere).…
.NET Runtime
getting error code on newest .net installation in registry editor 0x80131700
whenever i try to start powershell it just closes but i see a flash of it's screen, but i can open x86 version of powershell fine. i wanted to run something on it so i thought why not on this version, but when i run it it says version 4.0.3....…
.NET Runtime

Best Practice for Managing Multiple .NET Hosting Bundle Versions on the Same Server
Hi, We currently have a self-contained .NET project (Project A) running on our Windows server, built with .NET Runtime 8.0.10. The application is hosted using IIS, so we also installed the .NET 8.0.10 Windows Hosting Bundle to support it. Now, we are…
.NET Runtime
problem of aspnetcore-browser-refresh.js connection failed.
Microsoft Team, I am working with Visual Studio version 17.13.6 and facing the aspnetcore-browser-refresh.js:350 WebSocket connection to 'wss://localhost:' failed:. issue. Also, I found the below solution from Microsoft, but unfortunately, I cannot find…
.NET Runtime
Get USB Info with impersonation is not working
Hi, Without impersonation I get USB info. With impersonation is not working. I'm using .NET 9 , MAUI on windows. I got driver is not ready!!! Can you please help ? My code with impersonation is : `if…
.NET Runtime
How to add Nuget packages into Visual studio?
How to add Nuget packages For newly installed visual studio