IIS 4.0 NT OWA -STRANGE!! PLEASE HELP

IIS 4.0 NT OWA -STRANGE!! PLEASE HELP

NT 4.0 Exchange 5.5 IIS 40 SP6a - PATCHED Recently
started having OWA crash on this server. I'd reboot and
it would work for a week or so and then the same thing. I
looked in the IIS logs and for the last month or two it is
filled with successful requests to Default.asp FROM
itself? The IIS logs below show it. 10.0.0.2 is the IIS
server's IP that these log files are from. What is going
on? I just scanned it for viruses but it came back clean.

#Software: Microsoft Internet Information Server 4.0
#Version: 1.0
#Date: 2004-02-17 00:01:14
#Fields: time c-ip cs-method cs-uri-stem sc-status
00:01:14 10.0.0.2 HEAD /Default.asp 200
00:03:13 10.0.0.2 HEAD /Default.asp 200
00:05:13 10.0.0.2 HEAD /Default.asp 200
00:07:14 10.0.0.2 HEAD /Default.asp 200
00:09:13 10.0.0.2 HEAD /Default.asp 200
00:11:13 10.0.0.2 HEAD /Default.asp 200
00:13:13 10.0.0.2 HEAD /Default.asp 200
00:15:13 10.0.0.2 HEAD /Default.asp 200
00:17:13 10.0.0.2 HEAD /Default.asp 200

mick2767 DeleteThis @hotmail.com