For such a simple thing, use
instead. I don't know what to explain here; everything is written: http://msdn.microsoft.com/en-us/library/system.io.directory.aspx
Oh no, sorry, not everything. There is one unpleasant subliminal Microsoft problem about it. Please see:
Directory.Get.Files search pattern problem
First, I learned about it from CodeProject members! Highly appreciate the lesson.