I think that Quarantine Manager only works with mail programs like WebShield (EWS), GroupShield...but not with VSE.
When VSE scans a file it first tries to desinfect it and if it can't then it will erase the file putting it on quarantine.
Perhaps the only way not to delete the file is tell VSE to deny access to this file instead of erasing it (but I think it won't put it on quarantine)
Thanks for the Help
I figure it out myself
Its in the "On-Access Default Processe Policies" in Actions and there Deny access to files.
This setting work for me, it puts the files into quarantine.