Second Life Cache

Im playing on Second Life (no comment) and there are a cache of downloaded textures, is it possible to add the entry of Second life in CCleaner to clear the cache?

Because the cache is taking something like 500MB and more sometimes. I konw there allready an option in-game, but some users don't know that. When the cache is full the game is working slowly. :mellow:

I post some links, if it can help:

http://wiki.secondlife.com/wiki/Clear_Cache_OS

http://wiki.secondlife.com/wiki/Texture_cache