SilentPrint is unable to print Microsoft Word files and the SilentPrint Log file (silentprint.log) contains the following error:
printFile_DOC: PrintOut() failed
This method or property is not available because a document window is not active.
The problem is due to a bug in versions of Word 2000 prior to Service Release 1 (SR-1). Whilst Word functions correctly when used interactively, the bug is related to Word being automated (OLE automation).
In order to overcome the problem, Microsoft Word/Office needs to be updated to Service Release 1 (SR-1) or later.
Details regarding Office 2000 Service Pack 3 can be found here on the Microsoft support website.