This code uses a string to set the initial folder of an OpenFileDialog.
class Test { const string MyComputer = "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}"; const string MyDocuments = "::{450D8FBA-AD25-11D0-98A8-0800361B1103}"; const string MyNetworkPlaces = "::{208D2C60-3AEA-1069-A2D7-08002B30309D}"; const string Printers = "::{2227A280-3AEA-1069-A2DE-08002B30309D}"; const string RecycleBin = "::{645FF040-5081-101B-9F08-00AA002F954E}"; const string Tasks = "::{D6277990-4C6A-11CF-8D87-00AA0060F5BF}"; [STAThread] static void Main(string[] args) { OpenFileDialog ofd = new OpenFileDialog(); ofd.InitialDirectory = MyComputer; ofd.ShowDialog(); } }