Hi all, I used the "msExchESEParamCacheSizeMax" parameter (set to 64x8192=524288)in ADSI Edit to limit the memory to 4GB for store.exe on a 6GBExchange 2007 server. Nowstore.exe never exceeds 100,000 Kb. What gives? I went back andset the msExchESEParamCacheSizeMaxparameter to <not set> and still the memory does not increase. Is there a registry change I did to change also? Help! Thanks, Pilot.

Pilot I've the same. I meanwhile doubt that the Task Manager is an appropriate tool to measure memory usage. Use perfmon instead. Dominique.