stange options log entry

I am getting tons of the below log entry. 10.10.10.28 is a win2k3 machine
in my local network and 10.10.10.115 is a winxp machine. Does anyone know
why its connecting every couple seconds. Does anyone know what this log
entry means?


2006-06-29 00:00:03 10.10.10.28 OPTIONS / - 80 - 10.10.10.115
Microsoft-WebDAV-MiniRedir/5.1.2600 401 2 2148074254

Bob