I would not start to address this by mangling your KeyPaths! One file per component with that file as the key is a good practice.
In case it's not obvious, your issue is running some managed code during uninstall that's missing a dependency. If there's a way to omit this code or replace it with something less fragile that would do it. A detour to your service repair issue may be to set the flag true for Delete at Install. The repair will delete the service during the repair and then reinstall it. The service will then have the default credentials and will need to be reconfigured with the account, but you will at least get a successful repair. That's assuming you changed the service logon credentials after install. Phil Wilson -----Original Message----- From: Sameer Arora [mailto:arora...@gmail.com] Sent: Monday, August 08, 2011 2:59 PM To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] Best effort uninstallation ? I get the following error on uninstallation with one or more files missing from the installation directory. "Error 1001 Exception occured while initializing the installation: System.IO.FileNotFoundException: Could not load file or assembly 'file:///....' or one of its dependencies. The system cannot find the file specified" I also tried a crude workaround by removing "KeyPath" requirements from most of the files and collecting them all under one component. I am hoping that by doing so, if a file within a component is missing, uninstall could still succeed even if repair would miss re-installing the file since the missing file has no keypath. Do you think this will work without having to first repair? (my repair is broken as well, but that's over missing logon credentials for a windows service that gets installed initially. Figuring out how to address that as well, but that's a different issue). So is there no solution without first repairing? Thanks, Sameer On Fri, Jul 22, 2011 at 1:41 AM, Peter Shirtcliffe <pshirtcli...@sdl.com>wrote: > What error do you get when Windows fails to uninstall when a file is > missing > ? I thought that would work. > Repairing the MSI before trying to uninstall would restore the missing > files, > if you have access to the original MSI. > > If you have customers that are deleting files in the Windows directory, it > would be best to discourage them :) > > -----Original Message----- > From: Sameer Arora [mailto:arora...@gmail.com] > Sent: 22 July 2011 00:11 > To: General discussion for Windows Installer XML toolset. > Subject: [WiX-users] Best effort uninstallation ? > > If one loses one or more installed files post a successful installation, > the > uninstallation fails citing missing the missing file. > Also, if the original MSI that gets cached under > %SystemDrive%\Windows\System32 is lost, the uninstallation still fails > citing missing MSI. > > Is there any way to uninstall on a "best effort basis"? > > I tried marking my components "non-primary" under features and files as > "non-vital" but that didn't help. > > Thanks, > Sameer > > ----------------------------------------------------------------------------- > - > 5 Ways to Improve & Secure Unified Communications > Unified Communications promises greater efficiencies for business. 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