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).

Here is the test case:
1. install a fresh copy of Windows on a test machine
2. install all available Windows Updates (so the system is up to date)
3. create a sample MSI installer which only installs some dummy files (let's say Product Version 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. v1.0.1) 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 and 8 machines UP TO DATE
2. the issue is not replicated on a fresh installation of Windows without Updates applied

Is there anyone aware of what could cause this error? Once again the patch installation fails only on Windows machines with the latest Updates installed.

Thx,

Daniel

Hello Daniel,

I apologize for the delay.

Based on my knowledge, I cant find a solution to fix this.
To receive better support about creating msi file, it is recommended to post in the related MSDN forum.
https://social.msdn.microsoft.com/Forums/en-US/home
Thanks for your understanding.

Best regards,
Fangzhou CHEN