Environment.CurrentDirectory Property

By definition, if this process starts in the root directory of a local or network drive, the value of this property is the drive name followed by a trailing slash (for example, "C:\"). If this process starts in a subdirectory, the value of this property is the drive and subdirectory path, without a trailing slash (for example, "C:\mySubDirectory").

The following example demonstrates setting the CurrentDirectory property.

		// Change the directory to %WINDIR%							
		Environment.CurrentDirectory = Environment.GetEnvironmentVariable("windir");		
		DirectoryInfo info = new DirectoryInfo(".");
        	lock(info)
        	{      
			Console.WriteLine("Directory Info:   "+info.FullName);
        	}

.NET Framework

.NET Framework Client Profile

• SecurityPermission 

  for writing to files or directories in a set operation. Associated enumeration: SecurityPermissionFlag.UnmanagedCode

• FileIOPermission 

  for access to the information in the path itself in a get operation. Associated enumeration: FileIOPermissionAccess.PathDiscovery

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference