I'll look futher into it. I found these keys in oem drivers. Notes are from HTC not me. HR is assumed to be hardware resources or hardware ram.
Code:
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"UseHR"=dword:1
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"HighMem Limit"=dword:00A00000 ; 10MB out of 28 MB of share memory, shared between Shell, Lock, and IE6
Also, the res proxy edit from TP2 doesn't seem to stick and changes back in time. The biggest ram leak is in the 21849 sys used the gwes.exe which has up a 20+mb leak in it as its grown to nearly 28mbs on me before. That can be reduced in a custom rom soon.
I just found these keys while making an imagio kitchen and haven't had time to experiment with them.