Anyway to get a list of all applications installed across all workstations?

We are running Altiris 7.1 and going through some application whitelisting with another product.  We are trying to get a list of all the applications we have on our different workstations to help us go through and figure what needs to be whitelisted.  Does anyone have a query or can point me to a place where I can try to gether that info?

Thanks,