Hi Fredrik, I think I had a pretty bad understanding of how the GAC works. So you are saying that I should just install all those components into the GAC and not worry at all whether they are already installed or not. If they already exist, Windows Installer won't install them a second time. If they don't exist, they will be installed. Most importantly though, Windows Installer will always guarantee that they are installed for my own program. Did I get that right?
Thanks a lot! Patrick > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:wix-users- > [EMAIL PROTECTED] On Behalf Of Fredrik Grohn > Sent: Wednesday, April 11, 2007 18:40 > To: Patrick Schmid; wix-users@lists.sourceforge.net > Subject: Re: [WiX-users] detect installed .net assembly > > The fact that you are trying to do this indicates that you are trying > to break the component rules that says to never install two components > sharing the name and target location. > > What you really want to do is have an identical component in both the > MSI's that I presume you have. That will allow Windows Installer to > properly keep track of reference counting for instance. > > Imagine the following scenario: > 1. The user installs the first product that contains your GAC assembly > and the assembly is registered. > 2. The user installs your product that finds the assembly already in > GAC and does not try to install it a second time. > 3. The user uninstalls the first product and the assembly gets removed > from GAC. > 4. The user tries to run your application that fails because the > required assembly is no longer in GAC. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:wix-users- > [EMAIL PROTECTED] On Behalf Of Patrick Schmid > Sent: Monday, April 09, 2007 8:52 PM > To: wix-users@lists.sourceforge.net > Subject: [WiX-users] detect installed .net assembly > > How do I figure out with wix3 whether a particular .net assembly is > already > installed (and registered in the GAC)? I'd like to write a condition to > not > install an assembly if the user has it already installed. > > Thanks, > > Patrick Schmid > > > ----------------------------------------------------------------------- > -- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVD > EV > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users > > ----------------------------------------------------------------------- > -- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVD > EV > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
