Problem - during login to VFP Application, "Library file vfp2c32.fll is invalid"
Resolution:
The issue here can be reproduced by failing to check for exclusive use then extracting an update
runtimes as well as vfp2c32.fll using 7z for example.
7z e yourapp.exe -y
Upon next login, error will present.
Confirm exclusive use and extract the update again, all is well.
We are deploying a tool which checks for exclusive use of all files within the manifest of the zip being installed which works well to avoid the situation. Manual installation by humans will fail here unless they are aware of the issue and actually see 7z complaining about extraction of files in use.
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