How to start x64 bit application from x86 application in c#

I have to start x64 bit application that is located under c:\windows\system32 (it 开发者_运维技巧is x64 bit system). I have x86 application that shout start it. I use c# Process class. What should I do in order to runt this application ? The problem is that when I point to this application through Process.Start("c:\windows\system32\app.exe") I get version from c:\windows\sysWOW64.

I guess your problem is that the 32 bit application can't see the 64 bit system32 directory. You can use c:\windows\sysnative instead if you have to specify a full path. Alternatively you should just be able to name the program without its path, i.e. MyExecutable.exe rather han c:\windows\system32\MyExecutable.exe.