What does this mean: "(e. g. it does not find the self-erased file)" in reference to the uninstall? If the only problem here is that you've installed a file, removed it, and now you want to prevent repair then make the Component guid null and you can remove it with impunity.
Phil Wilson -----Original Message----- From: Markus Karg [mailto:[email protected]] Sent: Thursday, April 01, 2010 4:50 AM To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] Prevent deinstallation Thanks for the tip, but what we are seeking for is a "100% pure MSI" way. :-) > -----Original Message----- > From: Richard Horsley [mailto:[email protected]] > Sent: Donnerstag, 1. April 2010 12:57 > To: General discussion for Windows Installer XML toolset. > Subject: Re: [WiX-users] Prevent deinstallation > > If it needs to be independent and not part of an overall upgrade then > no, msp is not the solution for you. Unfortunately im not entirely sure > that there IS a way of doing what you want without there being a way of > the user removing the msi using the control panel. The only other thing > you could do is have the installer create shared files as well as the > installed product and make one of these an .inf file that contains the > installed information that your support desk can check to see if the > product was EVER installed. > > Richard Horsley > > -----Original Message----- > From: Markus Karg [mailto:[email protected]] > Sent: 01 April 2010 11:20 > To: General discussion for Windows Installer XML toolset. > Subject: Re: [WiX-users] Prevent deinstallation > > Well, the problem is actually less that we want to prevent *files* from > getting removed (the module itself is not a file but a once-run > proprietary script that removes itself as soon as it successfully > terminated) but that we want to prevent (a) the uninstall button > produces any kind of error message (e. g. it does not find the > self-erased file), and (b) our hotline falls into a trap when checking > for installed modules using the system control panel, not seeing the > module anymore there. > > Also, the modules are only dependent of the main product, but must be > independent of other modules. > > So this sounds as if .msp is *not* the solution then? > > > -----Original Message----- > > From: Richard Horsley [mailto:[email protected]] > > Sent: Donnerstag, 1. April 2010 12:05 > > To: General discussion for Windows Installer XML toolset. > > Subject: Re: [WiX-users] Prevent deinstallation > > > > Theoretically yes, they will be able to remove the patch from > "Programs > > and Features" if they click on "View installed updates", however, if > > you create the patch correctly, removing it will not actually remove > > the patched files. I have a patch process that works in this way. It > > should be noted though, that if you create any further patches that > > rely on the original being installed first, the user will have to be > > aware of the upgrade path. > > > > -----Original Message----- > > From: Markus Karg [mailto:[email protected]] > > Sent: 01 April 2010 10:58 > > To: General discussion for Windows Installer XML toolset. > > Subject: Re: [WiX-users] Prevent deinstallation > > > > In theorey we could, but: > > > > Will this solve the problem? > > > > Will the user be able to see that the module was installed? > > > > > -----Original Message----- > > > From: Richard Horsley [mailto:[email protected]] > > > Sent: Donnerstag, 1. April 2010 11:42 > > > To: General discussion for Windows Installer XML toolset. > > > Subject: Re: [WiX-users] Prevent deinstallation > > > > > > Could you create an .msp to patch the original installer to add > these > > > files? > > > > > > -----Original Message----- > > > From: Markus Karg [mailto:[email protected]] > > > Sent: 01 April 2010 10:30 > > > To: General discussion for Windows Installer XML toolset. > > > Subject: [WiX-users] Prevent deinstallation > > > > > > We have to write a .msi to install modules into a preinstalled > > > software. > > > > > > > > > > > > The problem is that once the module is installed, it can never get > > > uninstalled, as it modifies some software-internal structures in a > > way > > > that makes it impossible to undo. > > > > > > > > > > > > So, we have to prevent that somebody goes into the system control > > > panel, > > > selects the module, and presses "uninstall". > > > > > > > > > > > > Can we do that using WiX? > > > > > > > > > > > > > > > ----------------------------------------------------------------------- > > > ------- > > > Download Intel® Parallel Studio Eval > > > Try the new software tools for yourself. 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