3 copies of MSXML 4.0 SP2 ???

Why do I have 3 copies of MSXML 4.0 SP2 ???
This is what I see in Control Panel/Programs and Features:
MSXML 4.0 SP2 (KB936181) Microsoft Corporation 2/26/2008
MSXML 4.0 SP2 (KB941833) Microsoft Corporation 2/27/2008
MSXML 4.0 SP2 (KB954430) Microsoft Corporation 11/12/2008

Can I uninstall the first two and leave the last one?
I'm seeking to minimize disk space for image backup purposes.
This is on Vista-64 Home Premium.

pvc said:

Why do I have 3 copies of MSXML 4.0 SP2 ???

Click to expand...

Hmmmmm, Silence... Oh okay Grasshopper. I get it. Must be some sort of Zen thing.

Well I tried removing/uninstalling the first two copies of MSXML 4.0 SP2. It seems to have no effect at all. Disk space usage is still the same. My system seems to perform the same.

So I'm guessing it just appeared to have three copies installed when only one copy was actually installed.