Wmic List all Installed patchs

From Command line run:

wmic /node:localhost /output:d:\file1.htm qfe GET description,
FixComments,hotfixid,installedby,installedon,servicepackineffect /format:htable.xsl

VBScript List all missing microsoft updates offline mode.

List all missing updates, in a windows client with no access to internet.

You will need to download the wsusscn2.cab file in this location  http://go.microsoft.com/fwlink/?LinkId=76054