IIS7: IIS Worker Process stopped working and was closed

Hi,

After I started using IIS7 on Vista (Home Premium), i get this message
very regularly:
IIS Worker Process stopped working and was closed.

I can only click 'OK'.

Whatever IIS7 is having problems with doesn't seem to affect it.
All my apps seem to work.

The websites I am currently working on run PHP5.2 with ISAPI
(php5isapi.dll).

Did anybody experience this behaviour too?
Suggestions?

Thanks in advance!

Regards,
Erwin Moller

It can certainly happen that your application can take IIS down if something
is happening within the application that is catastrophic to IIS.

Have you checked that possibility?

I have been doing Web development work using Vista Ultimate and IIS7, and I
have had no such issues.

Nothing catastrophic is happening, unless something is happening inside
the PHP ISAPI.
It even happens when I do NOT call a phpscript.
I cannot find anything usefull in the eventlog either, only that an
error occured. :-/

Hello!

I recently installed IIS to begin some PHP development and get exactly the
same behaviour as is described by Erwin below (Vista Ultimate again).

I've installed PHP as a "Handler" under IIS management console and installed
PHP using the Windows installer and selected the "ISAPI" install option (same
files as Erwin as well).

Every now and then I get a message saying an IIS worker process has failed-
even if I'm not running or doing anything with PHP. Again, as for Erwin I get
no problems running PHP code....

As Erwin said

Any thoughts?

The links are talking about the worker process in IIS6 and gives detailed
information about the worker process. You should be able to do the same for
more information on IIS7. Is it related to Vista? I don't know. My best
guess is something is happening with an application that the worker process
is or has serviced. I think you should understand what is the worker process
in IIS and how is it being used to service an application, before you can
start to trouble shoot or debug.

<http://blogs.msdn.com/paul_fallon/archive/2004/12/05/275345.aspx>

<http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/1e31abd9-998e-47ce-82fc-931a571db7ea.mspx?mfr=true>

I've found the message in the system-eventlog

Level: information
source: WAS
Description: The Process with ID=4868 for ApplicationPool PHP5 was inactive for 20 minutes and is shut down.

I'll test with a new idleTimeout (1740) of this ApplicationPooland no messages appear