Problem with "Expand Environment Variables"

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Hello

I have a problem with path wich contains Environment Variables "%%ProgramFiles%% ...

"%%ProgramFiles%%\\test\\filename.exe"

I used Environment.ExpandEnvironmentVariables(Path) function to convert it, the result was "Program Files" but the result should be "Program Files (x86)" because the target path is found in "Program Files (x86)" folder !!

How can i get the right folder ??

sorry for my poor english !!

Posted 3-Aug-13 4:58am

Abdulla0991

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[no name] 3-Aug-13 11:02am

http://stackoverflow.com/questions/194157/c-sharp-how-to-get-program-files-x86-on-windows-vista-64-bit

2 solutions

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Ron Beyer · Answer 1 · 2013-08-03T05:03:00

Solution 1

See this answer on StackOverflow[^]

Posted 3-Aug-13 5:03am

Ron Beyer

André Kraak · Answer 2 · 2013-08-03T05:03:00

Solution 2

Have a look at this answer: http://stackoverflow.com/questions/194157/c-sharp-how-to-get-program-files-x86-on-windows-vista-64-bit/194223#194223[^]

Quote:
The function below will return the x86 Program Files directory in all of these three Windows configurations:

32 bit Windows
32 bit program running on 64 bit Windows
64 bit program running on 64 bit windows

C#
static string ProgramFilesx86()
{
    if( 8 == IntPtr.Size
        || (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"))))
    {
        return Environment.GetEnvironmentVariable("ProgramFiles(x86)");
    }

    return Environment.GetEnvironmentVariable("ProgramFiles");
}

Posted 3-Aug-13 5:03am

André Kraak

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Abdulla0991 3-Aug-13 11:11am

thanks :( but my question is :

if i have path like:
"%%ProgramFiles%%\\test\\filename.exe"

how i can know the right folder ?? "ProgramFiles (x86)" or "Program Files" ??

André Kraak 3-Aug-13 11:19am

That depends on whether it is a 32-bit or 64-bit program.

On a 32-bit Windows it can only be a 32-bit program and the correct folder is "Program Files". On 64-bit Windows it will be in "Program Files" if it is a 64-bit program and in the "Program Files (x86)" folder when it is a 32-bit program.

Windows will not solve this for you. The ExpandEnvironmentVariables function does it suppose to and expand to the standard folder, which is "Program Files" on both versions of Windows.

Abdulla0991 3-Aug-13 11:30am

so, there isn't way to solve this problem ???

André Kraak 3-Aug-13 13:15pm

If you do not know the architecture of the program you will need to check both paths for the presence of the program.

Abdulla0991 3-Aug-13 13:53pm

I was thinking the same thing ,, i will use it until i find more dynamic code

thank you friend