Many thanks for your reply. Two server is: + Windows 2000 Server SP4 + Exchange 5.5 SP4 OWA I don't run IISLockdown or any security tools. Wait for your reply. Regards, -----Original Message----- From: Mulnick, Al [mailto:Al.Mulnick@xxxxxxxxxx] Sent: Monday, April 19, 2004 8:21 PM To: [ExchangeList] Subject: [exchangelist] RE: Inetinfo.exe could make 100%CPU in IIS and OWA ? http://www.MSExchange.org/ Depends on what it's doing. Have you looked at the logs to see what is occuring during the spikes? Inetinfo is an IIS process, but OWA is the app that uses it. What else is running on that machine? Have you run the security tools against the machine (IISLOCKDOWN etc ?) If so, have you configured them correctly? Have you applied the server patches that are required? Al -----Original Message----- From: Tuan [mailto:tuanma@xxxxxxxxxx] Sent: Friday, April 16, 2004 10:51 PM To: [ExchangeList] Subject: [exchangelist] Inetinfo.exe could make 100%CPU in IIS and OWA? Importance: High http://www.MSExchange.org/ Hi all, Our 2 OWA Server sometime take 100% CPU by process INETINFO.EXE when other Server not. Do you think this problem because of IIS or OWA? Server: Windows 2000 Standard Server + IIS5 + OWA (Exchange 5.5) Thanks in advance ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------