The paid version of the program does other "stuff", see their website, that you may never need.
I believe you can remove WMP, it has no bearing on Flip4Mac.
As I have no idea what programs you have on your machine, I do not feel qualified to tell you which ones will not work in Tiger. I do know that everything from Apple will, and if it is any help, all my programs worked with Tiger.
OK, so I just upgraded to Tiger and Window Media Player 9 apparently doesn't work with the new OS so I checked out M$ WMP site. It directed me to Flip4Mac and I installed it... Suddenly video news feeds like those from CNN that never worked very well play seamlessly, without stutter.
Program seems pretty cool.
So the question is... do I still need WMP 9 or can I delete it from my applications folder?
Is it worth upgrading to the paid version of Flip4Mac?
Any other programs that need tweaked or won't work since my upgrade?
Thanks in advance.