I think this is happening because your Silverlight check has a version number in the registry Data and the URLProtocol has no value in the registry Data for that string. I think you might need to check a setting that would actually have a value. As soon as I put a value of "Test" in the URLProtocol then the check started working fine.
I also had luck with this code, but you'd probably need a separate RegistrySearch for each version using this approach. <Property Id="ACROBATREADER"> <RegistrySearch Id="AcrobatReaderChk" Root="HKLM" Key="SOFTWARE\Adobe\Acrobat Reader\9.0\Installer" Type="directory" Name="Path"/> </Property> <Condition Message="Error: This application requires Acrobat Reader to be installed">ACROBATREADER</Condition> -----Original Message----- From: kim [mailto:contactme...@gmail.com] Sent: Wednesday, March 30, 2011 7:51 AM To: wix-users@lists.sourceforge.net Subject: [WiX-users] Registry check for Acrobat reader I need to check if any version of acrobat reader is installed on target machine. IF not installed display error message and stop installation. Wix code: ACROBATREADER = "notfound" My problem is,above message always gets displayed whether or not acrobat reader is installed or not. It does not check the condition ACROBATREADER = "notfound". I also tried folloiwng way but still the same result ACROBATREADER Any suggestions please? Thanks -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Registry-c heck-for-Acrobat-reader-tp6223495p6223495.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------ ------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users