Remove Files does not work in Windows Installer

Posted on 2010-09-09
Last Modified: 2013-11-14
I create installers that install revisions of software and files that coexist with previous installations.  I discovered that two unversioned files from previous installations were incorrect.  The only way I could find to always overwrite them was to add entries to the MSI's RemoveFiles table.  This did not work, even though the installer log said it did:

Action 14:18:27: RemoveFiles. Removing files
RemoveFiles: File: IntelliRupter-2.3.3.zsd, Directory: C:\Program Files\S&C Electric\Products\IntelliRupter\HMI\2.3\
RemoveFiles: File: IntelliRupter-2.2.9.zsd, Directory: C:\Program Files\S&C Electric\Products\IntelliRupter\HMI\2.2\
Action 14:18:27: CreateFolders. Creating folders

InstallFiles: File: IntelliRupter-2.3.3.zsd,  Directory: C:\Program Files\S&C Electric\Products\IntelliRupter\HMI\2.3\,  Size: 33129
InstallFiles: File: IntelliRupter-2.2.9.zsd,  Directory: C:\Program Files\S&C Electric\Products\IntelliRupter\HMI\2.2\,  Size: 33128

When I look at the appropriate directories, the older files are still there.

Has anybody had similar experiences, or does anybody know of an easy way (VS 2005, Windows Installer project) to force always overwrite on unversioned files?


David Orenstein
Question by:dorenstein
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Expert Comment

ID: 33656989
is it possible those files are readonly or are used by some process at them time of installation?

Accepted Solution

dorenstein earned 0 total points
ID: 33664251
They are not read-only, but (I'm almost too embarassed to admit this):  I wanted to overwrite two older  files with newer revisions.  According to mis update rules, as long as the older unversioned files have the same create and modify dates (indicating they have not been modified), this should happen automatically.  But it was not working.  I just discovered why:  My updated installer was still pointing to the old files!  Sorry for wasting your time.

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