http://www.blitzbasic.com/Community/posts.php?topic=43904 <-- tells you how to make a DLL in blitz.
and here is how to use that dll as a lib.
http://www.blitzbasic.com/Community/posts.php?topic=41803#469834
and here is how to use that dll as a lib.
http://www.blitzbasic.com/Community/posts.php?topic=41803#469834