FWIW, while .NET has the System.Environment class available, I tend to still
use the MSI provided OS Properties ( [ProgramFilesFolder]
[ProgramFiles64Folder] ) for these types of resolution. It's a not reinvent
the wheel kind of thing.
----------------------------------------
From: keith.doug...@statcan.gc.ca
Sent: Wednesday, September 05, 2012 2:51 PM
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] Custom action question
I have a 32 bit application whose installation package includes a CA written in
C#. This works fine on 32 bit Vista and fails to work on x64 Windows 7. At
first I caught that I had accidentally hardcoded to C:\program files\, but I
have since written in a check to see whether or not we're on 32 or 64 and using
the appropriate path accordingly. I use the following (obtained from CodePlex):
private string GetProgramFiles()
{
if (IntPtr.Size == 8 ||
!String.IsNullOrEmpty(System.Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432")))
return System.Environment.GetEnvironmentVariable("ProgramFiles(x86)");
else
return System.Environment.GetEnvironmentVariable("ProgramFiles");
}
However, it seems that this does not work right. I still get the 32 bit value
back when run in a CA. Is there some sort of gotcha about custom actions I
should know about? I find it incredible that IntPtr.Size would change, but ...
The identical code does return the right directory (ProgramFiles(x86)) in a
standalone application.
I will triple check that the right code is being built into the CA and the MSI,
but ...
Keith Douglas
Statistics Canada | 170 Tunney's Pasture Driveway, Ottawa ON K1A 0T6
Statistique Canada | 170, promenade Tunney's Pasture, Ottawa ON K1A 0T6
keith.doug...@statcan.gc.ca
Telephone | Téléphone 613-951-4405
Facsimile | Télécopieur 613-951-1966
Government of Canada | Gouvernement du Canada
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