Agreed. I am not advocating a registry. Just saying that the systems are
very different. I am finished with cleaning registries, dealing with corrupt
registry or defragmenting it. Thanks but I take a pass. :)

The thing that Skype does is that it does not use Linux's sound system and
it leads t problems. I think that the same can be said for video. I am not a
Skype user, but I hear complaints all of the time on no matter what distro
that I am on. I think these problems could be sorted out with some
cooperation. Developers have offered to help, but so far they are having
none of it.

You make some good points about the registry and the way Linux is different.
As for running multiple instances, I do it all of the time, but it isn't
without problems.