Where is the sandbox for Avast?

[Grr]

There is a known bug in the Avast sandbox (Program virtualization) that causes BSOD while you upload files....the Avast forums says it will be fixed by ver 5.1. See

You Must Be Registered and Logged On To View "URL" BBCode Contents...

Thanks constantine.
I removed Avast from my system. Waiting for version-6, which would include free sandbox.