Windows 10 V1903: Update KB4517389 and VB issues

[German]A brief addendum to the October 2019 Patchday. As it appears, the KB4517389 cumulative update for Windows 10 version 1903 causes issues with certain 16-bit Visual Basic 3 applications.


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Update KB4517389 for Windows 10 V1903

Cumulative Update KB4517389 for Windows 10 V1903 and Windows Server Version 1903 was released on October 8, 2019 as a security update and raises the build to 18362.418. The update includes several security fixes for vulnerabilities in Windows 10.

I discussed the update in the blog post Patchday Windows 10-Updates (October 8, 2019). However, this update caused some users problems with the Windows shell (Start Menu, Search, Action Center) and with the Edge Browser. The articles linked at the end of this article provide more details on these questions.

There are issues with VB apps

I already became aware of this issue last week via this post at askwoody.com. Woody Leonhard’s user Mark Bushby left a comment within the forum because he encountered issues with VB applications.

Is anyone aware of issues/a fix for the symptoms below please.  Desperate for a fix asap !

– Windows 10 (1903 latest version/updates as on today) or Windows 7 32-bit
– After installing KB4517389 on these Windows systems, when opening 16-bit applications an error message is displayed “unexpected error; quitting”
– After removing the update the application works fine once more.

I’d like to establish what is causing this error so I can prevent it from crashing my 32-bit apps, or how to prevent this single update from installing automatically as part of the Windows Updates process in the future.

He observed crashed of older 16-bit applications running on a 32-bit Windows 10 version 1903. After installing the update KB4517389, 16-bit applications crash with the error message “unexpected error; quitting”. If he uninstalls the update, this error is gone and the applications will work again. He therefore asked if other users noticed these errors as well. But within the forum thread I didn’t found another user confirming this. Also KB4517389 says there are no know issues. But a user posted a link to this Microsoft Answers forum thread at askwoody.com

Windows Update KB4517389 causing VBRUN300.DLL to fail

I have a Windows 10 Home 1903 32bit machine.

After installing the windows update KB4517389 any programs that were coded in Microsoft Visual Basic 3 no longer run and give the message ‘unexpected error; quitting’

This message appears to be part of VBRUN300.DLL

If I uninstall the update the programs work ok again.

I have tried running these programs as administrator but this makes no difference.

Very, very old programs written in Quick Basic still run fine after the update.

There the issues is clearly tracked down to the VB runtime library VBRUN300.DLL. After uninstalling the update KB4517389 the applications created with Visual Basic 3 run again. There are other people who confirm the issue – there doesn’t seem to be any workarounds. Of course, the number of affected users is very small, since Visual Basic 3 applications with 16-bit mode are probably very rare. In addition, 16-bit applications can only run in 32-bit Windows environments, while the majority of systems are equipped with 64-bit Windows. Nevertheless, it’s stupid that the error occurs


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Ähnliche Artikel:
Patchday Windows 10-Updates (October 8, 2019)
Windows 10: Fixes for October 2019 (start menu) issues
Windows 10 V1903: Update KB4517389 breaks Edge Browser [Fix]


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