Another two-cents:
Code:
[HKEY_LOCAL_MACHINE\SYSTEM\Inbox\Handlers]
"ComposeBodyCount"="{c59db2e9-601c-423b-8bf3-352be01b89ba}"
[HKEY_CLASSES_ROOT\CLSID\{c59db2e9-601c-423b-8bf3-352be01b89ba}]
@="HTMLNote Compose Body Count Handler"
[HKEY_CLASSES_ROOT\CLSID\{c59db2e9-601c-423b-8bf3-352be01b89ba}\InProcServer32]
@="htmlnote.dll"
"ThreadingModel"="Free"
So, guess what. that dll is what does the actual count function. Maybe somebody can edit that dll, and make it count without the lag, one way or another.