Why upgrade window washer?

I've been a window washer user for years. And they've now come out with a upgrade to 6.6. In this version you have to get a key from them. I did but the key they've sent is only good for about 6 months. So I've reinstalled version 6.5. And don't get me wrong, I know they've just trying to stop the pirating of they've software. I just don't like the idea that I had a copy that I could use until I couldn't put it on the newest O/S. And now have to pay every year or is it 6 months?

I just came off a 4 year subscription of spysweeper, but they're other programs that are just as good or better.

But with window washer, it worked and was easy to use!

Thank you for your time :)
Rod

CCleaner is free

http://www.ccleaner.com