In "Reserved Words" (August 2003, InstantDoc ID 39418), Martin Corydon-Petersen asserts that you can't create files or directories whose names conflict with reserved words, illustrating with a folder named con.pds. However, you can indeed create and delete such a directory. Use the Universal Naming Convention (UNC) path to bypass the reserved words list. For example, go to a command prompt and enter
MD \\server\d$\con.pds
This command creates a directory called con.pds on the D drive. To remove the directory, enter
RD \\server\d$\con.pds