Hi,
You could use WMI Query for this.
Write a script that loops on a list of computers.
It will Connect to Each Computers WMI and Query for:
" Select Name from Win32_Product Where Name Like 'Microsoft Office%2007' "
This Query will give you only the Name of the Product installed and it will give you all the Products that Start with Microsoft Office and Ends with 2007.
It is allways best to query WMI with a Specific Query.
You can Use This Post For Guidence
Then you have only to chek That the colItems (Like from the Post) Count is Greater than 0
And you can be Assured that Office is installed on that Computer.
If you want Extra Checking you can Check the Name of Each Item in the Collection to see if it really is The Office Version You Need.
Good Luck
Assaf Miron
http://Assaf.Miron.googlepages.com