Purpose: The CurDir() function returns a string containing the current working directory.
Usage: CurDir(drive)
Returns: String containing the current working directory for drive. If no drive is specified, it returns the current working directory for the C: drive.
Examples and Special Cases
CurDir(C) = C:\MYDIR
CurDir(D) = D:\YOURDIR
CurDir() = C:\MYDIR

