How to detect Windows 64-bit platform with .NET?

Question

In a .NET 2.0 C# application I use the following code to detect the operating system platform:

string os_platform = System.Environment.OSVersion.Platform.ToS         


        

Answer 1

Just see if the "C:\Program Files (x86)" exists. If not, then you are on a 32 bit OS. If it does, then the OS is 64 bit (Windows Vista or Windows 7). It seems simple enough...