The MSI way to get this would be [%TEMP] (formatted type in Windows Installer) 
so you just need to get that in your WiX source somewhere. 

Phil Wilson 


-----Original Message-----
From: Yan Sklyarenko [mailto:y...@sitecore.net] 
Sent: Wednesday, February 04, 2009 8:07 AM
To: General discussion for Windows Installer XML toolset.
Subject: [WiX-users] How to reference a system environment variable?

Hello WiX community,

That's a really newbie question.

I need to set permissions to the TEMP folder, the one stated in the
system TEMP environment variable.
I was trying this way:

<!-- Setting permissions to the environment Temp folder -->
<DirectoryRef Id="TempFolder">
   <Component DiskId="1" Id="TempComp"
Guid="{YOURGUID-GOES-HERE-B106-B9D9705E01D7}" Permanent="yes">
      <CreateFolder>
         <util:PermissionEx ... />
      </CreateFolder>
   </Component>
</DirectoryRef>

But this way it references the user-specific TEMP variable, the one
under Documents & Settings. 

Could you please point me to the right direction?
Thanks.

-- Yan


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