Unknown ole server AchroExch.app

Hi,
I’m trying to work with PDF’s.
When I use the line: PDF = WIN32OLE.new(‘AcroExch.App’) i get the next
message:
initialize': unknown OLE server:AcroExch.App’
(WIN32OLERuntimeError)

Has anyone had this problem befor?

any help welcome.

Cheers,
Flaming F.