What is VRDB ? Explanation ...

I read the help files but i am still confused about Virus Recovery Database (VRDB). Can anyone explain its functionality and what is it and why is it ?
Should i generate it regulary ?

Avast 4.7

It stores the necessary info to restore executables (*.exe, *.com) files.
VRDB is not a backup system, the stored information is very small (not the whole files).
Besides, only Win32 executables are processed.
The VRDB data are stored in \Data\Integ\avast.int
So it’s not a bakcup utility, but a restore feature of avast.

Thanks for the very quick reply Tech but what it stores and how and when the stored information is used ?

I don’t know technically… as far I could search, Igor says http://forum.avast.com/index.php?topic=24598.msg201926#msg201926

It’s used when avast is ‘repairing’ a file. You can’t work with it externally.
Also read http://forum.avast.com/index.php?topic=4818.msg34783#msg34783