1,307 questions with Developer technologies | .NET | .NET Runtime tags

Sort by: Updated
0 answers

Sudden unexplained build failure: "Could not load file or assembly 'System.Runtime, Version=6.0.0.0"

Having a weird issue all of a sudden - my visual studio 2022 solution refuses to build, as several projects suddenly and unaccountably report similar errors, looking like this: The "ResolvePackageAssets" task failed…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2026-01-07T21:42:27.1633333+00:00
Chris Guin 0 Reputation points
commented 2026-01-07T21:59:13.3766667+00:00
Chris Guin 0 Reputation points
0 answers

.net framework 4.8.1 Targeting pack - Patch for 4.8.09037

Hi Together. Dows someone know if it possible to update resp. patch .net framework 4.8.1 Targeting pack 4.8.09037. Installed all KB related to this vulnerabilities but my antivirus agent still showing this version as vulnerable.

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2026-01-07T14:22:40.9233333+00:00
Zelimir Zaric 0 Reputation points
answered 2026-01-07T14:22:49.5933333+00:00
Q&A Assist
1 answer One of the answers was accepted by the question author.

Which Smart Assembly Version Do I have Use For .NET Core 8

Dear Team, I have migrated my .NET Core 8 application from .NET Framework 4.7. Previously when we used to use .NET Framework 4.7 we were using Smart Assembly version (6.9.0.114) for Obfuscation Release. But now after migrating to .NET Core 8 for…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-10-08T12:26:20.6466667+00:00
Drusti Kumar 20 Reputation points
accepted 2026-01-07T06:04:45.77+00:00
Drusti Kumar 20 Reputation points
2 answers

How to Migrate VB.NET WinForms App from AxTabDlg.AxSSTab (Sheridan SSTab ActiveX) to 64-bit Managed Controls?

Hello Community, I’m working on migrating a VB.NET Windows Forms application from 32-bit ActiveX controls to a pure 64-bit managed solution. The app currently uses Sheridan SSTab ActiveX via AxInterop.TabDlg (e.g., AxTabDlg.AxSSTab). Since ActiveX/COM…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-29T06:25:24.8933333+00:00
Aman Agrahari 180 Reputation points
commented 2026-01-06T12:05:37.3+00:00
Varsha Dundigalla(INFOSYS LIMITED) 4,325 Reputation points Microsoft External Staff
3 answers One of the answers was accepted by the question author.

how to insert values to array?

I want to insert values. var ax=[0x01,0x05,0x06] and I want to insert per times and if the per=3 then it will be: [0x01,0x01,0x01,0x05,0x05,0x05,0x06,0x06,0x06] and the array maybe 150kb so is there best practice to do it?

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-26T04:04:17.51+00:00
mc 6,576 Reputation points
commented 2025-12-31T22:16:17.6133333+00:00
Viorel 125.9K Reputation points
2 answers One of the answers was accepted by the question author.

Can Oracle.ManagedDataAccess NuGet (23.x) run in a 32-bit .NET Framework application?

Hello Team, I migrated from Oracle.DataAccess.dll (unmanaged) to Oracle.ManagedDataAccess.dll (managed) in a VB.NET application targeting .NET Framework 4.8 which is a 32-bit application. Oracle docs say managed driver requires 64-bit, but the NuGet…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-22T10:35:37.89+00:00
Aman Agrahari 180 Reputation points
commented 2025-12-31T07:33:11.76+00:00
Susmitha T (INFOSYS LIMITED) 2,210 Reputation points Microsoft External Staff
2 answers One of the answers was accepted by the question author.

How to migrate VB.NET WinForms app using legacy COM/ActiveX controls to 64-bit (.NET Framework 4.8.1)?

Hello Community, I have a VB.NET application targeting .NET Framework 4.8.1, currently compiled as 32-bit (x86) because it uses several legacy COM/ActiveX controls and references. I want to migrate this application to 64-bit (AnyCPU or x64) for future…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-22T10:27:54.1333333+00:00
Aman Agrahari 180 Reputation points
accepted 2025-12-26T06:30:57.7566667+00:00
Aman Agrahari 180 Reputation points
1 answer

Error while opening VS 2003 project in VS pro 2022

I am getting Error "Object reference not set to an instance of an object" while opening VS 2003 project in VS pro 2022. First it is asking for confirmation for one-way upgrade and after clicking on ok error pop up comes and solution is also not…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-18T09:48:36.97+00:00
Kumarv, Praveen 0 Reputation points
commented 2025-12-26T06:21:07.99+00:00
Susmitha T (INFOSYS LIMITED) 2,210 Reputation points Microsoft External Staff
1 answer One of the answers was accepted by the question author.

Issues trying to install .NET Framework 3.5 to an Offline Machine

Hello, I'm having issues installing Framework 3.5 to an offline machine. Every time I attempt to install the offline service pack, windows 11 attempts to connect to windows update servers and errors out with 0x8024402c. I can't seem to disable windows…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-22T14:40:35.07+00:00
Gered Koch 20 Reputation points
accepted 2025-12-22T14:51:09.4266667+00:00
Gered Koch 20 Reputation points
2 answers One of the answers was accepted by the question author.

How to fix MyDell attempting to use EOL/Unsupported .NET 6

I am receiving Qualys vulnerabilities alerts due to assets having "EOL/Obsolete Software: Microsoft .Net Version 6 Detected" I removed .Net 6.0.36 from a test asset and resolved the vulnerability. After restarting my device, I receive the…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-02-04T18:45:41.2533333+00:00
Tim A 40 Reputation points
edited a comment 2025-12-14T22:39:41.8233333+00:00
Mark Hetherington 10 Reputation points
1 answer

.NET Frame work 4.0 version compatible application not working in windows 11

Good day, We installed the CNL Application on Windows 10, where it was working fine with .NET Framework 4.0. After upgrading to Windows 11, the application is no longer functioning properly. I attempted to install .NET Framework 4.0, but the system shows…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-08T04:33:32.9133333+00:00
Koteswara Rao Mandava 5 Reputation points
commented 2025-12-12T04:26:53.4333333+00:00
Susmitha T (INFOSYS LIMITED) 2,210 Reputation points Microsoft External Staff
1 answer

Debian APT Source Issue

Hello, I’m having an issue with my apt sources, as shown below. It says that the SDK requires 652GB of space, which seems way too high. Could anyone help me figure out what’s going wrong? I’d really appreciate any guidance. Thank you!

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-11-30T15:39:32.76+00:00
楠 白雨 0 Reputation points
commented 2025-12-12T03:39:21.0766667+00:00
Harry Vo (WICLOUD CORPORATION) 4,500 Reputation points Microsoft External Staff Moderator
4 answers

Why is our coded Microsoft SSO, written in .NET 8 and implemented via AddMicrosoftAccount, now causing 404 errors?

We have a .NET application written in 8.0. For several months we've been using AddMicrosoftAccount for our Microsoft SSO after upgrading the program from the old .NET Framework 4.8. Several weeks ago we started receiving 404 errors in the Edge browser.…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-08T14:30:51.7733333+00:00
Jesse Sierks 35 Reputation points
commented 2025-12-10T13:28:43.9066667+00:00
Jamie Luby 0 Reputation points
1 answer

failed load hostfxr.dll at .net9 self-container app on win10,win7

i write a client app with .net9 vs2026, and publish with self-container. but it can't be run when i double-click on (win10,win7) part of my client machine. i look eventlog and get this. how to reslove this? i got a information for win7, install a…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-12-02T03:03:59.5266667+00:00
SIR WANG 0 Reputation points
commented 2025-12-09T12:16:37.37+00:00
Varsha Dundigalla(INFOSYS LIMITED) 4,325 Reputation points Microsoft External Staff
3 answers

How To Install .net framework 4.0 on windows 11

Good day, We installed the CNL Application on Windows 10, where it was working fine with .NET Framework 4.0. After upgrading to Windows 11, the application is no longer functioning properly. I attempted to install .NET Framework 4.0, but the system shows…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-11-27T05:32:06.29+00:00
Koteswara Rao Mandava 5 Reputation points
commented 2025-12-08T10:14:05.0233333+00:00
Gade Harika (INFOSYS LIMITED) 2,335 Reputation points Microsoft External Staff
2 answers

Need assistance with .Net Framework runtime error on ver 4.8 .

I'm using Fortra's Automate software which uses .Net and when running tasks, it's erroring out and before the application error there's .Net runtime error. Vendor advised that the issue is with .Net and not their application. However unable to make…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-11-20T10:53:18.3066667+00:00
Avinash M 0 Reputation points
commented 2025-12-01T11:20:38.3033333+00:00
Surya Amrutha Vaishnavi Lanka (INFOSYS LIMITED) 1,645 Reputation points Microsoft External Staff
1 answer One of the answers was accepted by the question author.

How to fix API

Use your fixing.com web tool to fix your API make sure you visited my sites .net if its not working or its slow please search on .net runtime or contact us on our contact services

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-11-27T21:00:41.66+00:00
Heavenlys Ntsaluba 20 Reputation points
accepted 2025-11-27T21:02:09.6033333+00:00
Heavenlys Ntsaluba 20 Reputation points
2 answers One of the answers was accepted by the question author.

Script to track AD group changes and email

Hi all, I’m trying to set up a scheduled PowerShell script that: Monitors an on-prem AD security group (example: SG_App_Access) Runs every 4 hours via Task Scheduler Compares current membership to the last run Detects which users were Added or…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-11-22T11:35:00.27+00:00
Rising Flight 6,256 Reputation points
accepted 2025-11-25T14:56:52.86+00:00
Rising Flight 6,256 Reputation points
1 answer

Deployed C# API is not accessible, swagger, routes, all return 404

I was able to connect my github repo, github action auto-deployment on commit. Builds and deploys successfully (creating artifact) from the yml script Azure I auto-generated and committed to my repo. Azure overview page says my app is running good, no…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-04-14T03:49:00.7733333+00:00
Eric Milliot 5 Reputation points
answered 2025-11-25T02:59:09.3366667+00:00
Eric Milliot 5 Reputation points
2 answers One of the answers was accepted by the question author.

Mismatching versions of System.Text.Json

In our company, we develop 2 .NET solutions. Solution 1 contains - amongst others - a couple of .NET Framework 4.7.2 class libraries used in other projects. Some of these class libraries reference the NuGet package System.Text.Json 9.0.11 because this is…

Developer technologies | .NET | .NET Runtime
Developer technologies | .NET | .NET Runtime
.NET: Microsoft Technologies based on the .NET software framework. Runtime: An environment required to run apps that aren't compiled to machine language.
1,307 questions
asked 2025-11-12T15:41:22.73+00:00
uds 25 Reputation points
edited a comment 2025-11-19T15:38:58.9866667+00:00
uds 25 Reputation points