How do I identify if my C:\Windows\system32\wuauclt.exe file is legitimate?

I am running XP Pro SP2 and still using Sygate as my firewall. This notified that Windows Update Automatic Updates had changed since the last time I used it and did I want to allow it access to which I answered yes. Sygate nevertheless blocked it and now the wireless icon in the notification area is continually glowing and the status shows it is receiving even though I am not connected. The file path in question is
C:\Windows\system32\wuauclt.exe and I note that *\wuauclt1.exe is also present in the system32 folder.

What should I do?
I have 3 screen shots that will flesh out the issue but cannot paste them here.
P-4NAsked:
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davidis99Connect With a Mentor Commented:
Both of those are valid files.  You can verify them by comparing the versions and byte counts against the information in these articles - you'll need to check for the specific versions you have installed against several possible versions.  If your versions and byte counts match, they're legitimate files.
http://www.processlist.com/search?q=wuauclt.exe&x=0&y=0
http://www.processlist.com/search?q=wuauclt1.exe&x=0&y=0
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