>>>Since the memory leak starts as soon as I click on Reply, I was wondering if I can "catch" the service that kicks in on Reply. I look in the Task Manager and see many services running. If I could get them into a report and then get them again into report, after clicking on Reply, it could point to the culprit. Does anyone know how to get a report of all Services in Task Manager?
>>
>>From a command box you can run

>>tasklist /svc >serviceslist.txt

to get a list of running services. You might even compare the machine that's showing the problem with the one that runs OK.
>
>Thank you very much.

Not sure whether you'd catch it among services. It's also possible that it's something that runs as a process, i.e. an app which doesn't have its own desktop window so it doesn't show in the taskbar. There's probably a similar switch for showing processes.

You may be better off with process explorer by Mark Russinovich (Rusinović?) - https://technet.microsoft.com/en-US/sysinternals