That seems unlikely to me, even with the limited information supplied. Unless there's something you haven't told us, why is it the registry?
1. What exactly does "uninstalls v1.7" mean? Or "disables"? If you still have 1.7 and 1.8 in Add/Remove Programs then it hasn't removed 1.7. If it's broken it then as suggested you've broken component rules (i.e. broken sharing) and uninstalling 1.8 is removing parts of 1.7. 2. If it's only a Vista problem the typical issue is that the install doesn't work properly with UAC systems, and a lot of that relates to custom actions that don't run elevated on Vista when they do on XP. 3. What exactly does it mean that you have 1.7 AND 1.8 on the system? If these are are supposed to co-exist side by side and not interfere with each other at all there are things you should be doing. If an uninstall of one is clobbering the other they are clearly not side-by-side, so there are issues about whether they are supposed to overlap or be completely separate with nothing shared anywhere. For example, you can't just install two random products into the same folder when files have identical names unless you've followed sharing rules. On the other hand, if you ensure that they never overlap in file locations and directory entries then they are side by side and won't interfere with each other, but you have to decide which approach you're taking to make it all work. Phil Wilson -----Original Message----- From: S.P [mailto:iraniangirl9...@yahoo.com] Sent: Tuesday, August 03, 2010 3:03 AM To: General discussion for Windows Installer XML toolset.; Blair Subject: Re: [WiX-users] WiX problem on Vista I think that the main problem is related to the difference between setting registry in Vista and XP.But I don't know what the difference is and how should I change it.Would you please help me? Thanks --- On Sat, 31/7/10, Blair <os...@live.com> wrote: From: Blair <os...@live.com> Subject: Re: [WiX-users] WiX problem on Vista To: "'General discussion for Windows Installer XML toolset.'" <wix-users@lists.sourceforge.net> Date: Saturday, 31 July, 2010, 6:19 PM Hard to say with such limited information, but my best guess would be a problem with component rule violations. You really don't give enough of the right information to make concrete diagnosis and give good advice. -----Original Message----- From: S.P [mailto:iraniangirl9...@yahoo.com] Sent: Saturday, July 31, 2010 3:09 AM To: wix-users@lists.sourceforge.net Subject: [WiX-users] WiX problem on Vista Dear All, I have an installer which can have different versions such as V1.7, V1.8, etc. After installin each version, we have some problems with uninstalling it. When we uninstall V1.8, it also uninstalls V1.7 or disables it. This is not on all machines. The primary one we have seen the problem is on Vista. Unfortunately, we don't have a lot of different machines to fully test this issue.But it works well on XP. Does anybody know the reason? Thanks in advance ---------------------------------------------------------------------------- -- The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. 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