SysListView32 mouse selecting bug after Windows 10 - Fall Update

Question

Dear Microsoft 

You know you can use the api CreateWindowEx to create a 'SysListView32'.

If you have created a listview with API, then set it to large icons, or details mode.

Now add 100 items to the listview so that you will get a vertical and or horizontal scrollbar.

Then scroll to middle of the listview.

Try to select items, you will notice the Listview will move the mouse cursor to the lower corner or top of the screen.

This happened after the Fall Creators Update (of october 2017) version 1709.

The component that Microsoft updated to point you in the direction is 'mscomctl.dll' which has the bug.

(since Windows XP, up to vista, 7, 8, and 10 (before the Fall update) this always worked perfect.

You can try this bug with WinRar, WinZip, 7zip, of any program that using a Listview (SysListView32).

Just add enough items to the listview to get scrollbars, scroll to middle, try to select multiple items, and voila, the mouse starts to move by itself all over the screen.

I've tested this bug on 4 different Windows 10 machines before and after Fall update.

On 7z forums (which is another proggy i use) they have the same problem).

Ive also tested it myself with WinRar and WinZip. both also having this bug.

Please fix this bug as soon as possible, my software relies heavily on the SysListView32 like a lot of other software.

Kindly regards,

Michiel

Netherlands

Moved from: Windows / Windows 10 / Security & privacy

Answer 1

We appreciate your efforts in resolving this issue. We noticed that you already posted an inquiry regarding this issue to the Microsoft Development Network forums. We highly suggest that you continue to interact on that community since it caters to IT professionals that can further assist you with this concern.

Regards.

Answer 2

After some more researching: 

Even Microsoft "Windows Explorer" (only Windows 10 Fall update 1709) itself is having this bug (which is also using the SysListView32 component)

Test it yourself. Just go to your ''My computer'' and then go to a folder that has a lot of icons so that scrollbars will be visible.

Then scroll to middle, or just a little down with the scrollbars or mousewheel,

Then try to select multiple files by mouse, and voila. The mouse will go all over the screen by itself.

Good luck fixing this as soon as possible.

Im happy this is also in the Windows Explorer itself so that it will be fixed soon.

Why Microsoft did not see this bug at testing phase is mayble because if no scrollbar are visible it works good. - It will work (sometimes) also if your at the top of the listview and then select multiple files, but as soon as you scroll down in the list, and you try to select multiple files the mouse starts to move all over the screen)

I've tested this on 4 totally different Windows 10 Fall Creators (1709) computers.

Before the Fall Creators update, down to Windows XP this always was working perfect.

Answer 3

Im using version 16299.19 (the default Fall Creators update that windows gives tru its Windows Updates)

But im hearing that Windows fixed this in version 17025.

But this is only for Windows Insiders. But i still have to confirm it.

Answer 4

I've tested this bug with Windows Insider version 1709 (17025.1000).

With the Windows 'File Explorer' from Windows itself the bug has been fixed.

BUT.

It's not fixed for RarLab.com (winrar), or WinZip, or 7z, or any non-microsoft software that using the SysListView32 object.