>From the msi documentation: "The ProductCode property is a unique identifier 
>for the particular product release"

It sounded to me like you have a completely separate release so you should 
change the ProductCode property of the MSI. This is set by the Product/@Id 
attribute in WiX.

From: Davut Karabay [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 01, 2007 2:31 PM
To: Peter Marcu; wix-users@lists.sourceforge.net
Subject: RE: [WiX-users] How to prevent cached msi being invoked (not asking 
msiexec /fv)

Hi Peter - What do you mean by changing the product code?


________________________________
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; wix-users@lists.sourceforge.net
Date: Thu, 1 Nov 2007 13:47:35 -0700
Subject: RE: [WiX-users] How to prevent cached msi being invoked (not asking 
msiexec /fv)
Change the product code.

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Davut Karabay
Sent: Thursday, November 01, 2007 1:40 PM
To: wix-users@lists.sourceforge.net
Subject: Re: [WiX-users] How to prevent cached msi being invoked (not asking 
msiexec /fv)


Re: [WiX-users] How to prevent cached msi being invoked (not asking msiexec 
/fv)<http://sourceforge.net/mailarchive/[EMAIL PROTECTED]>
From: Richard <[EMAIL PROTECTED]> - 2007-11-01 19:47

In article <[EMAIL PROTECTED]>,
Davut Karabay <[EMAIL PROTECTED]> writes:

> When I run the new version of installer, it invokes the installed old versi=
> on. I don't want that happen. I want the new version installed anyway.

Why?
--


Because new version of the product is completely different from old one 
(apparently except the installer). Set of features, targeted platforms are 
different. So, it makes sense to me that new one does not invoke old cache. 
Specific scenario is this:

--Old version is installed on XP
--New version has launch conditions to install only on Vista
--Try installing new version on XP (to test that it won't install)
--New version invokes old cache. Launch conditions won't even run.
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