IIS6 restarting on its own?

From: Bürgen Straüß (b_strauss_at_hotmail.com)
Date: 05/20/03 

Date: Tue, 20 May 2003 20:08:16 +1000

I have noticed through-out the logs:
#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2003-05-20 09:00:45
#Fields: date time cs-method cs-uri-stem cs-uri-query c-ip cs(User-Agent)
cs(Referer) sc-status sc-substatus
2003-05-20 09:00:45 GET /hack/default.aspx ~/MSADC/root.exe
203.210.128.125 - - 500 0
2003-05-20 09:00:52 GET /hack/default.aspx ~/scripts/root.exe
203.210.128.125 - - 200 0
2003-05-20 09:02:32 GET /hack/default.aspx ~/c/winnt/system32/cmd.exe
203.210.128.125 - - 200 0
#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2003-05-20 09:28:02
#Fields: date time cs-method cs-uri-stem cs-uri-query c-ip cs(User-Agent)
cs(Referer) sc-status sc-substatus
2003-05-20 09:28:02 GET /pages/sco/pre.htm - 64.68.80.158
Googlebot/2.1+(+http://www.googlebot.com/bot.html) - 200 0
#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2003-05-20 09:59:52
#Fields: date time cs-method cs-uri-stem cs-uri-query c-ip cs(User-Agent)
cs(Referer) sc-status sc-substatus
2003-05-20 09:59:52 GET /hack/default.aspx ~/ 192.168.200.100
Microsoft-WebDAV-MiniRedir/5.1.2600 - 200 0

Is that usual?

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