Problems with active PDF Server

[tompod]

Hello

I'm trying to convert post script (PST) file to PDF
from ASP application using active PDF Server
What's wrong with this code:

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Set APServer = Server.CreateObject("APServer.Object")
r = APServer.PSToPDF("file1.pst","file1.pdf")
Set APServer = Nothing
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return value r = -99 instead of 0.
PDF file isn't created.

Can someone help me!
Thank's,
Tomaz