I don't know if it has been mentioned already, but there seems to be a bug in version 5.2.1. When I go to download page 4 and type "dml" and press enter in order to choose what dml revision I want, there is an error with the Findstr command. The error occurs when updating ModMii through the programm itself, but also when downloading version 5.2.1 directly from the google code page. The error message says: "FINDSTR: Argument missing after /C" I have attached a screenshot: