DLL needs 45 s to work again (nt4)

I have made a activeX dll that produces a report file after fetching some data from a SQL server. Everything works fine when I call the dll from another application but when I do the same via a asp page I have to wait for 45 s before it can produce and save a report again. Also it can't recognize any printer on the server. When I run it locally on my windows 2000 machine it works fine. It seems only to appear under nt4 IIS4. Is there any permission problems, or what?