Here’s an interesting error message which appears in the Microsoft Knowledge base.

Error Message: Your Password Must Be at Least 18770 Characters and Cannot Repeat Any of Your Previous 30689 Passwords

Umm OK. It gets better though!

Note that the number of required characters changes from 17,145 to 18,770 with the installation of SP1.

Damn it, I just came up with a good one that was 17,200. Knew I shouldn’t have installed SP1! I’m going to run out of post-it notes now. (tip: be sure to tick the box that says “Remember Password” ^_^)