That one does seem to be a false positive with Avast. It is the Install Shield engine. It can be reinstalled if removed.
I think this is the right down to reinstall it, if needed.
Some information here.
I would only reinstall it if it removed it with Avast.
Despite some media reports, there were no AK-47s involved in the incident
Last edited by GIockGuy24; 09-30-2012 at 16:39..