valinet / valinet/ExplorerPatcher

Simple Window Switcher with Windows 11 taskbar broken since ExplorerPatcher v26100.8457.70.1

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fixed High Priority
Dominant language
C
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Description

Before reporting your issue
  • I have confirmed that this issue does not happen when ExplorerPatcher is not installed
  • I do not have "register as shell extension" enabled
  • I have tried my best to check existing issues
Repro ExplorerPatcher versions

26100.8457.70.1

Repro Windows Versions

Windows 11 25H2 build 26200.8457 x64

3rd party tweak software installed

none that I know of

Describe the bug
  1. Install ExplorerPatcher version 26100.8457.70.1
  2. Enable Simple Window Switcher (ExplorerPatcher -> Window Switcher -> Window switcher (Alt+Tab) style -> selecting Simple Window Switcher), no matter what Show Delay value is selected
  3. switch windows via Alt+Tab
  4. no window switcher UI is displayed + switching moves forward only and not forward and back when performing Alt+Tab twice consecutively
Expected outcome

The standard outcome after using Alt+Tab (no matter what window switcher style is selected) is to display window switcher UI with windows miniatures first and then switch windows. And when performing Alt+Tab twice consecutively, the user should get back to a window where Alt+Tab was initiated for the first time.

Actual outcome

No window switching UI with windows miniatures is displayed. And when performing Alt+Tab twice consecutively, windows are switched forward only, not one step forward and one step back.

Additional info

I went back to older ExplorerPatcher version 26100.4946.69.6 and everything works fine in terms of Simple Window Switcher, so the new ExplorerPatcher version is to blame.

Crash Dumps

No response

Media
Image

I'm not able to get window switching UI with windows miniatures in ExplorerPatcher version 26100.8457.70.1. The one depicted on the screenshot comes from older ExplorerPatcher version 26100.4946.69.6 where things seem to work fine.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the failure through ExplorerPatcher → Window Switcher with Simple Window Switcher enabled, using Alt+Tab on Windows 11 25H2 build 26200.8457. Compare version 26100.8457.70.1 with 26100.4946.69.6. Done means the switcher UI appears and two consecutive Alt+Tab presses return to the original window.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
desktop, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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