Previously, With ISA Server 2004, I have published an article on How To Determine Which Service Pack is Installed On ISA Server 2004
Well, now that there are multiple major updates for ISA Server 2006, I believe its time to summarize the different ISA Server 2006 version numbers you would get with each major update you apply to it, such as a supportability update or a service pack.
Note : An Updated article is published and can found here : ISA 2004, ISA 2006 and TMG Server 2010 Version Numbers
In this brief article I will not repeat the steps that I have mentioned in the previous article related to ISA Server 2004, as they are the same steps exactly.
I will be only display the results in a table for the different ISA Server 2006 versions.
Try the steps yourself and you will get the following results :
|ISA Server Level →
Version From ↓
|ISA Server 2006 with NO Service Pack
|ISA Server 2006 with Supportability Update
|ISA Server 2006 with Service Pack 1