This is likely a classic component violation. The component GUID has been revved but the version independent progID remains the same registry key for the two components, meaning the uninstall of any one of the components will remove the key out from underneath the other product since two separate components share the same resource. A repair of the other product may undo the damage. The only way to avoid this is to place the version independent registry data into its own component that component versions separate from the file version dependent information. In this case your 3.5 and 4.0 installs would have the same component for this information that doesn't change and it would add-ref properly. -- Bryan
________________________________________ From: Manik Bavandla [bman...@gmail.com] Sent: Tuesday, May 11, 2010 12:16 AM To: wix-users@lists.sourceforge.net Subject: [WiX-users] Version independent prog id is removed after uninstalling current version Hi All We have a version independent prog id in a COM dll. We used heat.exe to generate the COM registry keys. 1) Installed the version 3.5 MSI with the com registry keys generated using heat.exe. 2) Installed the version 4.0 MSI with the com registry keys generated using heat.exe, note that COM classids and progids are changed in this version. 3) Now, if uninstall the 4.0 MSI, the version independent prog id got removed. Why is this happening? is this a known issue? Any pointers would be helpful. Using regsvr32.exe also we are observing the same behavior. What are the best practices for using version independent prod ids? Thanks in advance. Manikyam ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
