Trying to run FxCop on a project with spaces in the name (like "Name With Spaces") results in FxCop returning with the error message: FxCopCmd.exe exited with code 73 (MSB6006).
Removing the spaces (into "NameWithSpaces") results in correct invocation of FxCop.
Version info: SharpDevelop 2.2.0 build 2595 and FxCop 1.35