Windows

Complexity Requirements? are you referring to that a policy force a password to be alpha-numeric and/or a certian length? When they expire and rotation (not using same passwords, forcing different passwords when expire)? I am confused with your question. Google can give you tons of information on how to setup password policies, which in this information you may find understanding on the subject.

Here is Microsoft KB article that details password complexity requirements for Win2K: http://support.microsoft.com/default.aspx?scid=kb;en-us;279890#appliesto

From the article:
Passwords must be at least six characters long.
Passwords may not contain your user name or any part of your full name.
Passwords must contain characters from at least three of the following four classes: Uppercase letters, lowercase letters, numeric characters, and/or punctuation characters.

These are hardcoded in to passfilt.dll and cannot be edited through U/I or registry. You would have to write a new DLL.

Hope this helps.

Also try this Technet article on PASSFILT.DLL, the password complexity filter:

http://support.microsoft.com/?kbid=161990

It was an optional install on NT4; in Win2K and beyond it is now on by default, and the filter rules are the same.

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