Command-line switches for Windows software update packages

Does anybody know an other way to determine the type of a software update
package?
- may be an up-to-date summary list of all patches?
- ...?

My intention is to deploy the patches on machines that are not connected to
the internet. Installation should be silent and in background. It is working
for the most of the available patches, but not all are using the
command-line switches.

Thanks for your help.
Urs

Original Microsoft KB Entry:
To determine whether a software update uses Hotfix.exe or Update.exe as the
Setup program for packages released after July 2004, examine the Installer
Engine value on the Version tab of the Properties dialog box for the
software update package. For packages released before July 2004, you must
extract the package contents to check which installer is used.