This is a common issue and these is nothing you can do with the exception of 1 things. switch from .net v2 to .net v4 frame work.
Directory.CreateDirectory fails in .net v2 in medium trust
Directory.CreateDirectory works in .net v4 in medium trust
This is a common issue and these is nothing you can do with the exception of 1 things. switch from .net v2 to .net v4 frame work.
Directory.CreateDirectory fails in .net v2 in medium trust
Directory.CreateDirectory works in .net v4 in medium trust