Hi Doris,
I stumbled across your post, hope you got an answer...What we always used for checking memory leak on windows was to open the Task Manager on the Web Server.
Click on the Processes Tab. If you are running Apache sort the list by alpha and find the process called HTTPD.EXE (or something very close) You can watch this process grow/shrink. If you have the leak the mem attached to this will grow/grow till your server dies from swapping out.
By now there should be versions of PHP/Apache that are solid w/o the leaks. Look at earlier threads here.
Mark Hilliard
Mpls MN
Hardware and performance
Apache Memory Leak
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