Program Slow after Firewall Blocking.

And if you use MSE and Windows Firewall?

If I use MSE and Windows Firewall, go into Advanced Settings and Make a new Rule and block internet access there. Everything is fine.

"Why not just use MSE then?"

Because I feel safer using Kaspersky.

Here's an idea. Why not see if I can use my KIS Key on Kaspersky Anti-Virus and use Windows 7 Firewall?

Worth a try.

Were you able to replicate it?

Didn't try with Kaspersky. Just MSE and Windows Firewall and all went well there.

I'd use MSE full time, but something about the term "Internet Security" seems safer.

Update: I blocked Inbound...something on the Kaspersky Firewall and had the same issue. I unblocked that and blocked Outbound and it works fine now.

Which one needs to be blocked?

You did the correct thing.

I'm still looking for a Windows Firewall for Dummies explanation to help my understanding.

Okay, so we should be good then. I don't want Xilisoft doing anything it's not supposed to.