The error:
The installation package could not be opened. Contact the application vendor to verify that this package is a valid windows Installer package.
the facts:
WinServer 2003 running MSI 3.1.4000.2435 (3.1 v2)
Single server setup
AutoCAD 2006
Brand new clean server, fully patched.
Everything on the server end is working fine.
When firing up the deployment on a workstation (different one), the DWF viewer installs fine, the the AutoCAD installation begins, and almost immediately it is aborted, and this error is given.
Any ideas?