Unique identifier for windows

[bononos]

IS there a quick an easy way to get a unique identifier for a windows pc on the command line shell or by using a c api? The wiki for guid says it doesn't work on 32bit installations?

 

[Bubbaleone]

Scroll down this page, look at Acctinfo (32-bit) and Acctinfo2 (64-bit):

Account Lockout and Management Tools