SBS 2011 Exchange Memory usage

I need to set a max amount of RAM for Exchange to use. Normal ADSIedit.msc and the following path are what I use.
 Configuration > Services > Microsoft Exchange > {Your Organization Name} > Administrative Groups > {Your Administrative Group} > Servers > {Your Server Name} > InformationStore.

But on this SBS machine under Servers there is nothing, no InformationStore, no anything.
I have removed the connection, readded, refreshed scheme, nothing seems to help.
Am I missing something, or is this a sign of some critical issue on the server?

Any pointers, much appreciated.