IIS6 server take long time to reboot

I recently installed a vendor's web application on IIS6 with default
application pools setting, during testing I found it took the server about 20
minutes to get rebooted, if no testing activities it reboots as normal,
further more I found there are many Dllhost.exe processes running under
administrator account, I changed IIS6 to run at IIS5.0 isolation mode, there
are still quite a number of Dllhost.exe processes and reboot still took about
15-20 minutes, the reason could be caused by the Dllhost.exe processes took a
long time to unload, are there any ways to improve? I got some suggestions to
make the application run under system account, if it works how to change?

Thanks!

ben

It sounds like you are running web pages that use 3rd party COM components
that are having trouble on shutdown (IIS has no code that runs in
dllhost.exe, so this is unlikely to be an IIS/Windows issue). Please
identify such components that you are using and troubleshoot the dllhost.exe
that is not shutting down -- and get support for those COM components.

Right now, it sounds like the dllhost.exe hangs and waits for the
dllhost.exe timeout/recycle period of 20 minutes before the system can
shutdown.

--
//David
IIS
http://blogs.msdn.com/David.Wang
This posting is provided "AS IS" with no warranties, and confers no rights.
//
"ben" <ben DeleteThis @discussions.microsoft.com> wrote in message
news:EDFFDC7B-C79C-40F2-B61A-4C99C4F1FAA5@microsoft.com...
I recently installed a vendor's web application on IIS6 with default
application pools setting, during testing I found it took the server about
20
minutes to get rebooted, if no testing activities it reboots as normal,
further more I found there are many Dllhost.exe processes running under
administrator account, I changed IIS6 to run at IIS5.0 isolation mode, there
are still quite a number of Dllhost.exe processes and reboot still took
about
15-20 minutes, the reason could be caused by the Dllhost.exe processes took
a
long time to unload, are there any ways to improve? I got some suggestions
to
make the application run under system account, if it works how to change?

Thanks!

ben