IIS \ W3SVC1 Log Explanation

I need help in understanding an IIS (W3SVC1) log file.

The log file below references directories that used to be hosted on this server over a year ago.  The logs are from today though.  And these were simple directories that are now hosted on a different server that is not running IIS.  In fact, I have no idea on why these directories would even be mentioned in an IIS log.

Can anyone help explain what would make the generatorrepairdb, g5135 and specs directories appear as they do in an IIS log?


#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2011-02-28 00:08:57
#Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) sc-status sc-substatus sc-win32-status
2011-02-28 00:08:57 xx.xx.62.14 OPTIONS / - 80 - xx.xx.39.204 Microsoft-WebDAV-MiniRedir/5.1.2600 200 0 0
2011-02-28 00:08:57 xx.xx.62.14 PROPFIND /generator%20repair%20db - 80 - xx.xx.39.204 Microsoft-WebDAV-MiniRedir/5.1.2600 501 0 0
2011-02-28 00:08:57 xx.xx.62.14 OPTIONS / - 80 - xx.xx.39.204 Microsoft-WebDAV-MiniRedir/5.1.2600 200 0 0
2011-02-28 00:08:57 xx.xx.62.14 PROPFIND /generator%20repair%20db - 80 - xx.xx.39.204 Microsoft-WebDAV-MiniRedir/5.1.2600 501 0 0

#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2011-02-28 00:27:14
#Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) sc-status sc-substatus sc-win32-status
2011-02-28 00:27:14 xx.xx.62.14 OPTIONS / - 80 - xx.xx.66.81 Microsoft-WebDAV-MiniRedir/5.1.2600 200 0 0
2011-02-28 00:27:14 xx.xx.62.14 PROPFIND /g5135 - 80 - xx.xx.66.81 Microsoft-WebDAV-MiniRedir/5.1.2600 501 0 0
2011-02-28 00:27:14 xx.xx.62.14 PROPFIND /specs - 80 - xx.xx.66.81 Microsoft-WebDAV-MiniRedir/5.1.2600 501 0 0