I believe the correct setting is called
TTDT_INITIAL, as outlined here:
TTM_SETDELAYTIME (Windows Embedded Compact 7)
But in searching for it in my registry, I find nothing. And in searching
TTDT_INITIAL I only find people discussing coding for applications, not registry hacks for Windows.
I does seem Layback Bear's suggestion in post#3 in this thread should be the correct setting
Quote:
This will show you how to change the delay time, in milliseconds, that the mouse pointer has to stay hovered on a item before tooltip popups display in Windows 7.
A Guy