As the resident TFS admin, on occasion I am asked to undo a checkout (usually a lock) that a user has on a certain file. This can be done via the command line using the TF.e
if you use the tfs power tools undo procedure above you need to do a get or get latest to update your screen. Otherwise it looks like undo has not worked. The operation completed successfully. Because the workspace Workspace;domain\userID is not on this computer, you must perform a separate get operation in that workspace to update it with the changes that have been made on the server.