Late to the party, but here goes

....
Downloaded the portable apps.com platform and installed a few portable apps and am liking it so far. It's great that they even have a decent built in updater. However, there are a few apps (like foobar2000, ccleaner) which have their own portable versions and are not available in this site.
I don't think that the built in portable apps updater would work for these apps. Every time an update comes up, I could go to the site and download the zip file and then replace the files. But that would be doing it the hard way.

Any suggestions would be much appreciated....