regedit.exe (Windows Registry) is the registry that Windows Applications uses in order to store their saves.
Openning regedit[]
Openning regedit is quite easy. for vista and Win7 users, you just need to write "regedit" in start menu textbox
For Other Windows users, you just have to enter 'Run' from start menu, or press WindowsKey [super] + R ( 
+ 
). Now write "regedit" and press enter
Re-Volt in Registry location[]
In the Registry, Re-Volt has 2 locations:
HKEY_LOCAL_MACHINE\SOFTWARE\Acclaim\Re-Volt\1.0
and it's for Re-Volt settings
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectPlay\Applications\Re-Volt
and it stores the required info in order to create lobby session and detect Re-Volt path.