Net Express crashes when using options (Get, Check Out, Check In, Undo Check Out, Add to Source Control, and Remove from Source Control)

When using Net Express 6.0 in Studio Enterprise Edition 6.0, Net Express crashes when trying to use the options (Get, Check Out, Check In, Undo Check Out, Add to Source Control, and Remove from Source Control) listed under the ‘Source Safe’ menu.

Turn off the multi-threading option for Source Control. This is accomplished by going to Options > Source Control > and deselecting ‘Use multi-threading’ checkbox.