Microsoft Server stealing my bandwidth?

[endomorph1]

Can anyone help me on this one. I have had a look at my site stats tonight and looking at the Top Hosts by IP and I see the following -

Host: 65.54.188.131 (Microsoft)
Pages: 918
Hits: 918
B/W: 41.86 MB

Host: 66.249.65.211 (Google)
Pages: 736
Hits: 736
B/W: 19.99 MB

Host: 80.43.28.6 (Me)
Pages: 379
Hits: 2311
B/W: 16.08 MB

I am number 3.

When I do an IP lookup on number 1, it's Microsoft! Why is MS accessing my site and using all that bandwidth?

Is it something to do with MSN search previewing the page?

Just out of interest, Google is number 2.

Any answers would be much appreciated

[Easy_Coder]

take a look at your logs and see if it's the msnbot.

[endomorph1]

Thats the thing, MSNbot does not appear anywhere.

[JKMitchell]

What does your log file say for one of the Microsoft visits?