Hi Ben,

Description of DrLocator table 
(http://msdn.microsoft.com/en-us/library/aa368331.aspx) states that Path column 
has type AnyPath 
(http://msdn.microsoft.com/en-us/library/aa367562(VS.85).aspx). Description of 
AnyPath mentions that path may contain *properties* enclosed in square brackets.
Set some property prior to AppSearch action to value you want (either 
SetProperty or CA Type 51).  Remember, that environment variable syntax is 
[%variable].  Use that variable in DirectorySearch.

Alex



-----Original Message-----
From: Ben Axelrod [mailto:baxel...@coroware.com] 
Sent: Thursday, April 30, 2009 2:17 PM
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] User's Environment Variable in DirectorySearch

I would like to have a conditional based on the presence of a certain file on 
the end user's drive.  The file is in the user's directory, so I would like to 
use some environment variables to locate it.  This is essentially what I want:

<Property Id="FILE_TEST">
  <DirectorySearch Id="File_Path" Path=" %HOMEDRIVE%%HOMEPATH%" Depth="0">
    <FileSearch Id="File" Name="foo.txt" />
  </DirectorySearch>
</Property>

<Condition Message="This setup requires a certain file">
  FILE_TEST
</Condition>

Which does not work.  Note that I am not looking to use pre-processor variables 
such as $(env.HOMEDRIVE)$(env.HOMEPATH) because then the string would be tied 
to my user directory, and not the person who is running the installer.

Is this possible, or do I have to get this info out of the registry?

Thanks,
-Ben
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