Using environment variable in a file path

Question

I\'ve got an environment variable set that points to a specific folder (call it MYFOLDER for example). When typing in %MYFOLDER%\\SubFolder into windows explore

Answer 1

Expand it first:

string path = Environment.ExpandEnvironmentVariables(value);

http://msdn.microsoft.com/en-us/library/system.environment.expandenvironmentvariables.aspx