Thanks for your reply Jim, all my ISA-Standard Application Filters are disabled except for FTP Access and the HTTP Redirector plus the non-ISA-Standard eTrust AVG SMTP Filter, which I have un/re-installed without success. Any ideas how to "unregister" the ntdll.dll as an app filter short of a complete overhaul? Thank you, Scott Talley IT Manager, The Combined Group e> stalley@xxxxxxxxxxxxxxxxx p> 469.892.4000 x829 f> 469.221.6900 -----Original Message----- From: Jim Harrison [mailto:jim@xxxxxxxxxxxx] Sent: Tuesday, June 01, 2004 10:04 AM To: [ISAserver.org Discussion List] Subject: [isalist] Re: FW Service crashing http://www.ISAserver.org You should remove any application filters you're using. The registration for one or more of them is completely hosed. C:\WINNT\system32\ntdll.dll is a system component that shouldn't be registered as an application filter. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://www.microsoft.com/isaserver http://isaserver.org/Jim_Harrison http://isatools.org Read the help, books and articles! ----- Original Message ----- From: "Talley, Scott" <stalley@xxxxxxxxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Tuesday, June 01, 2004 05:34 Subject: [isalist] FW Service crashing http://www.ISAserver.org Hi Guys, I really need some help. I'm having serious issues with my Firewall Service crashing and restarting about every 30 minutes. Below is the error generated, I have 2 other applications running on the ISA box, Rainconnect and CA eTrust AntiVirus Gateway, however I haven't made any changes to either in months. The AV Gateway does have an SMTP Application Filter, but I can't see any reason it would suddenly start to misbehave. Anyone seen this before or have any ideas? The Firewall service stopped because an application filter module C:\WINNT\system32\ntdll.dll generated an exception code C0000005 in address 77FCC8E1 when function CompleteAsyncIO was called. To resolve this error, remove recently installed application filters and restart the service. Thank you, Scott Talley IT Manager, The Combined Group e> stalley@xxxxxxxxxxxxxxxxx p> 469.892.4000 x829 f> 469.221.6900 ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.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 ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.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 ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: stalley@xxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist