> I am attempting to determine if a specific version of a product is already
> installed on the system. I basically want to do this to disallow/bail out of
> an install if the MSI that is being executed is already installed on the
> system.
1) If you run the same msi again you enter the maint
Launch conditions display when the evaluation is FALSE, i.e. the logic *fails*
To prevent installing my 32-bit package on a 64-bit OS, I use
something like this:
This means if "VersionNT64" evaluates to true (i.e. it's a 64-bit
system), I flip that to 'false'. If the applicat
At the moment I am trying to understand the conditional logic I posted.
Right now, when I attempt to install the condition is evaluating to TRUE and
causing the *first* install to fail. I am not understanding why it is
evaluating this way.
On Tue, Apr 20, 2010 at 2:02 AM, Sascha Beaumont
wrote:
So you want to prevent repair, uninstall and upgrades? Ugh.
If the Product ID isn't changing, Windows Installer should bail
automatically with "Another version of this product is already
installed" from memory, if you're using an automatically generated
Product ID you can use the fact that Windows
I am attempting to determine if a specific version of a product is already
installed on the system. I basically want to do this to disallow/bail out
of an install if the MSI that is being executed is already installed on the
system.
Here is my authoring using 3.0 RTM. I must be missing something
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