6,429 questions with Windows development-related tags

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2 answers

how to fix a helpfile not showing Jagannatha Hora 8.0

how to fix a helpfile not showing Jagannatha Hora 8.0 software

Windows development | Windows API - Win32
asked 2026-06-05T18:38:10.2233333+00:00
M. M. Rohana Wasantha 0 Reputation points
answered 2026-06-08T03:39:44.4633333+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
3 answers

Windows: User-mode MMIO access to PCIe GPU BAR returns 0xFFFFFFFF on laptop + PCIe expansion card +Thunderbolt , but works on desktop

Hi, I'm developing a Windows PCIe GPU driver. The device exposes a MMIO BAR region. In kernel mode, the driver can access the BAR registers correctly. For example: Register offset: 0x1f380 Kernel-mode read value: 0x7666 However, when I map the BAR…

Windows development | Windows Driver Kit (WDK)
asked 2026-05-27T14:02:13.57+00:00
Erdong zhang 25 Reputation points
answered 2026-06-05T11:40:15.49+00:00
Tom Tran (WICLOUD CORPORATION) 4,950 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Windows 11 24/25H2 : When our application is reinstalled VCruntime140.dll, msvcp140.dll and some other dlls are not getting copied.

Hi All, When our application is reinstalled VCruntime140.dll, msvcp140.dll and some other dlls are not getting copied under c:\windows\system32\ as expected. our installer is using merge modules internally to copy these dlls. when the application…

Windows development | Windows API - Win32
asked 2026-06-02T06:49:13.5166667+00:00
Gandla, Manjunath 20 Reputation points
commented 2026-06-04T06:46:29.5966667+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

System.Threading.Tasks.TaskCanceledException

我的代码: using System.ComponentModel; using System.Text; using System.Threading; using System.Threading.Tasks; using System.Windows; namespace CancelTokenTest { public partial class MainWindow : Window { private…

Windows development | Windows API - Win32
asked 2026-05-27T07:00:01.91+00:00
jason heung 20 Reputation points
accepted 2026-06-02T10:34:56.27+00:00
jason heung 20 Reputation points
1 answer One of the answers was accepted by the question author.

XInput on Windows 10+: Gamepad controller stops rumbling after using Alt-Tab back and forth

I'm writing a C/C++ application based on the win32 API along with XInput. Issue: I'm using XInputSetState once to set the rumble motors speed, however they stop when the app loses the focus even if it regains it after that. I would expect that regaining…

Windows development | Windows API - Win32
asked 2026-05-31T11:59:21.29+00:00
Lars-4325 20 Reputation points
commented 2026-06-02T07:44:42.1033333+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
1 answer

Microsoft Store WinAppRuntime.Main Update Stuck on Error 0x80070032 (Dependency Validation Block)

Microsoft Store WinAppRuntime.Main Update Stuck on Error 0x80070032 (Dependency Validation Block) When attempting to check for updates in the Microsoft Store, WinAppRuntime.Main.1.8 fails to update continuously, displaying a generic "Something went…

Windows development | Windows App SDK
asked 2026-05-23T14:20:22.4133333+00:00
Caleb Sorrensen 0 Reputation points
commented 2026-06-01T04:49:58.2133333+00:00
Jack Dang (WICLOUD CORPORATION) 18,890 Reputation points Microsoft External Staff Moderator
2 answers

Misleading quotes in If-Match header value

There is a section in https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-odata/614ae91e-c75e-4555-9e55-d3db0c57e4cf?source=docs The one exception to this rule is that if an If-Match header with a value of "*" is present on the…

Windows development | Windows Open Specifications
asked 2026-05-26T19:44:34.95+00:00
Christof 0 Reputation points Microsoft Employee
answered 2026-05-29T18:20:51.47+00:00
KristianSmith-MSFT 531 Reputation points Microsoft Employee Moderator
2 answers One of the answers was accepted by the question author.

How to make sure the Windows 11 Host chooses MSI instead of MSI-X for interrupt handling.

Hi Everyone, I am trying to build a new wifi driver for windows 11 machine with Wificx framework. I have a bluetooth+wifi combo chipset which is connected to the test machine in PCIe bus (M2E slot). The basic chip enumeration process is completed. In…

Windows development | Windows Driver Kit (WDK)
asked 2026-05-26T10:09:16.82+00:00
Sidharthan Srinivasan 20 Reputation points
accepted 2026-05-28T09:32:56.1+00:00
Sidharthan Srinivasan 20 Reputation points
2 answers

FLT_CALLBACK_DATA::RequestorMode is UserMode but FILE_RENAME_INFORMATION::RootDirectory is kernel handle

I develop a file system minifilter driver and have observed the following issue: When intercepting a IRP_MJ_SET_INFORMATION in a PreOperationCallback, I could see that FLT_CALLBACK_DATA::RequestorMode was UserMode but the handle in…

Windows development | Windows Driver Kit (WDK)
asked 2026-05-13T14:53:03.87+00:00
Benedikt Lazar 0 Reputation points
commented 2026-05-28T06:59:12.1366667+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
2 answers

Persistent IOMMU mapping of a multi-GB user-mode buffer for a non-WDDM compute device — is the chained-MDL + per-MDL BuildScatterGatherList approach idiomatic?

Context We are writing a bus-master KMDF driver for a custom compute accelerator (GPU-class device, but not plugged into the WDDM/DXGK stack). The device participates in DMA via the platform IOMMU and is configured as a bus-master, scatter/gather-capable…

Windows development | Windows Driver Kit (WDK)
asked 2026-05-18T14:10:56.5133333+00:00
Erdong zhang 25 Reputation points
commented 2026-05-28T06:12:07.03+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
1 answer

MSI to MSI-X in Windows Driver (PCIe : M2E slot)

Hi Everyone, I am trying to build a new wifi driver for windows 11 Iot Enterprise edition machine . I have a bluetooth+wifi combo chipset which is connected to the test machine in PCIe bus (M2E slot). The basic chip enumeration process is completed. In…

Windows development | Windows Driver Kit (WDK)
asked 2026-05-27T06:21:58.9833333+00:00
Nithish Karthik Thangaraj 0 Reputation points
edited an answer 2026-05-27T10:25:49.0266667+00:00
Nithish Karthik Thangaraj 0 Reputation points
2 answers

Having two websites on the same IIS server accessible with SSL certificates and URL Rewrite Enabled

Hello. I am running two websites on the same IIS server. Both sites go by the same URL, but the second one is accessible via port 10000. The respective URLs are the following: <recovery.domain.com> recovery.domain.com:10000 Recently I requested…

Windows development | Internet Information Services
asked 2026-05-13T16:12:42.8333333+00:00
Kaplan, Andrew H 226 Reputation points
commented 2026-05-25T15:17:49.54+00:00
Kaplan, Andrew H 226 Reputation points
2 answers One of the answers was accepted by the question author.

How to Create custom shadows on windows

Hello, I'm trying to create a GUI Framework where I'm using D2D with Direct Composition to Draw the window instead of relying on GDI and I managed to do that but I also want to add custom shadows to the window instead of the bad shadows of windows but I…

Windows development | Windows API - Win32
asked 2026-05-24T08:31:21.3266667+00:00
Omar Mohamed 160 Reputation points
commented 2026-05-25T08:05:40.7366667+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

How to Track File Change in WinUI?

Hi community! I'm developing a file manager with WinUI3 and C#, and I have a question. I want to add a file track function to automatically update the change of file content or file addition or deletion of a file/folder, or a rename/move action of them.…

Windows development | WinUI
asked 2026-05-25T04:39:57.24+00:00
水 知 295 Reputation points
accepted 2026-05-25T06:49:10.5133333+00:00
水 知 295 Reputation points
1 answer One of the answers was accepted by the question author.

how to fix dns client events 1014

I have a problem like this: My home Wi-Fi network is completely disconnected, not only on my computer but also on my phone and other devices, every time I log in to the game Genshin Impact. I tried restarting and resetting the router but it still didn't…

Windows development | Internet Information Services
asked 2025-09-06T07:16:43.1033333+00:00
nhật quang lê 25 Reputation points
edited an answer 2026-05-25T02:39:00.4066667+00:00
Tom Tran (WICLOUD CORPORATION) 4,950 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

How to fix size flickering on My D2D application

Hello, Right now I have a Direct2d application that basically aims to draw the window using D2D instead of GDI so I have used Direct3d on top of Direct 2d This is cool and it actually worked well The problem right now is that When I resize the Window a…

Windows development | Windows API - Win32
asked 2026-04-30T15:15:20.31+00:00
Omar Mohamed 160 Reputation points
accepted 2026-05-24T08:22:46.12+00:00
Omar Mohamed 160 Reputation points
2 answers

IIS - one website is working but my other website can't be found.

I have setup two websites in IIS. One is working but I just can't get the other one to work. I have checked that is has started and I have restarted it on numerous occasions. I have checked the bindings. I have checked the default document. I…

Windows development | Internet Information Services
asked 2026-05-18T03:50:24.6733333+00:00
Greg B 0 Reputation points
commented 2026-05-22T11:12:49.1633333+00:00
Tom Tran (WICLOUD CORPORATION) 4,950 Reputation points Microsoft External Staff Moderator
1 answer

How does OneDrive pin itself in the Home/Gallery area of Windows explorer?

OneDrive appears below home and gallery, in a section above everything else I have my own cloud sync engine, and I want it to appear in this area too, currently it appears 2 sections below

Windows development | Windows API - Win32
asked 2026-05-13T23:13:44.4866667+00:00
sysadmin 140 Reputation points
commented 2026-05-22T06:40:46.57+00:00
Taki Ly (WICLOUD CORPORATION) 1,830 Reputation points Microsoft External Staff Moderator
3 answers

Key Credential Manager - Secure Storage in WinUI

Hi [Continuing this conversation - https://learn.microsoft.com/en-us/answers/questions/2043534/secure-storage-of-data-in-a-winui-application?comment=question&translated=false] Thank you for the suggestion. I looked into KeyCredentialManager and my…

Windows development | Windows App SDK
asked 2026-05-12T06:38:46.93+00:00
Kirthick Raj S 0 Reputation points
edited a comment 2026-05-22T02:58:46.7433333+00:00
Nancy Vo (WICLOUD CORPORATION) 5,450 Reputation points Microsoft External Staff Moderator
2 answers

Au10tix fails make that I can't pass my hardware partner center Hardware verification

I'm trying to regist Microsoft partner center with Hardware , so that I can finish my job which is developing a Windows Driver and pass WHQL . And now I'm stuck on verification of Au10tix where I need to get a Verified ID for Authenticator. I follow…

Windows development | Windows Driver Kit (WDK)
Windows for business | Windows Client for IT Pros | Devices and deployment | Set up upgrades and drivers
asked 2025-01-10T11:05:36.1266667+00:00
JAY CHAN 5 Reputation points
recommended 2026-05-21T13:41:14.6266667+00:00
JuliaMarvin 19,255 Reputation points Volunteer Moderator