Problems with PHP 4.3.10 and 5.0.3 in IIS

Hi guys,

Has anyone else had trouble with the latest releases of PHP in IIS
(using the ISAPI module)?

I updated our copies of PHP recently and very soon IIS became very
unstable with the websites (both php4 and 5) not responding and even
FTP not working. Restarting IIS would get them back temporarily but
they'd fail soon afterwards.

We also run Apache on the server which suffered from none of those
problems and worked fine with the new version of PHP5.

I've rolled back the versions of PHP which seems to have fixed the
problems.

Has anyone else had these kind of problems and is there anything I can
do to fix them or find out more about the problem? I've had the latest
versions running on our test server and haven't found any problems so
it seems to only become apparent when there is a lot of activity.
Thanks
Andrew