What would prevent createobject ("application.illustrator") from working in a VB Script

Question

I have an automated process that monitors for Illustrator Docs and saves them as PDF.
The script is invoked from a service and was working fine, in the middle of processing, we starting getting the error "ActiveX component can't create object"
The error number is 429.
If I run the program interactively it works fine.
I am running the service under a named account that has local admin privlege to the box.
Windows2003 Standard, SP2
Illustrator 15 CS5 Design Premium.
From everything I can tell nothing on the machine has changed.
No updates, etc.
I have tried reinstalling Illustrator
All adobe patches are up to date.
I have tried creating a different account and get the same result, works fine running interactively, can't create object id script is invoked from a service.
Interestingly, you do see Illustrator.exe process in memory for a few seconds, the memory stalls ~30K and doesn't move.
When you run interactively the process is very active and memory grows was past 30K
Very baffled by this, any thoughts or insight is appreciated.
Greg

Answer 1

Good morninig,
Did you check the VBA menus tools\references to be sure that you use the lastest Library (Adobe Illustrator CS5 Type Library). If you have oldest dll try to remove them.
On PC opening Illustrator before using VBA macros is also a good approach.
Good luck
Patrice