What info. is stored in streams

[Prushka]

Greetings

1st Thanks for the MRU program

Can someone tell me what info is stored here
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\StreamMRU

and here
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams

and any other stream keys...TY

also...does MRU blaster remove all stream MRU's

and while I'm here...are there any caches that can be cleared, which MRU blaster hasn't been set to remove