PDFCreator not running after logging out

Hi,

I've installed PDF Creator onto a Windows 2008 server 64bit. Configured a shared PDF Creator printer for clients PC usage.

The problem I've encounter is the PDF Creator will not be running if there's no user logging into the server.  If there's a administrator logging onto the server, the clients can print documents to PDF without any problems.

Is there a way to resolve this?

Regards,

Genki Tan