Hello,

I want to report an issue which I think is a Windows bug introduced by one of the Windows updates (unfortunately I wasn't able to find out which one of them).

First of all this issue was already posted in the following forums sections:

http://answers.microsoft.com/en-us/windows/forum/windows_8-windows_update/every-patch-installation-fails-after-installing/e5371497-702b-455f-b31a-b2eca047763d?tm=1428478516479

https://social.msdn.microsoft.com/Forums/en-US/dc4b6e86-ec01-4a51-a6ef-d13a57818cb6/every-patch-installation-fails-after-installing-windows-updates?forum=vssetup

https://social.msdn.microsoft.com/Forums/ie/en-US/2439538c-d7b8-4883-bfd4-6b5e44ebde5f/every-patch-installation-fails-after-installing-windows-updates?forum=iewebdevelopment

Please do not redirect me again to another useless Microsoft forum.

Once again, here is the test case:

1. install a fresh copy of Windows (7, 8 or 8.1 x64) on a test machine
2. install all available (important and optional) Windows Updates (so the system is up to date)
3. create a sample MSI installer which only installs some dummy files (let's say ProductVersion 1.0.0) and host it on a web server

4. install the MSI from the online location using a command line like this:

msiexec /i http://server/share/package.msi

5. create a .MSP patch (e.g. ProductVersion 1.0.1) which only adds a new file to v1.0.0
6. install the v1.0.1 patch

RESULT: the patch installation fails with the following error message: "The filename , directory name , or volume label syntax is incorrect"

NOTES:
1. the issue was replicated on Windows 7, 8 and 8.1 machines UP TO DATE (all possible updates installed)
2. the issue is not replicated on a fresh installation of Windows without Updates applied

If it needed I can send you a test MSI and MSP package which you can use in your tests.

NOTE: the issue is ALWAYS replicated by iterating the test case I posted.

Regards,
Daniel

• Edited by Daniel.88 6 minutes ago