I just found out about XnView, and I think its the best viewer.
I recently tried the swf plug in, and I didn't like it, however I cant remove it

See before I installed it .swf extension were automatically opened in associated program. And now when I click them nothing happens, and I have to use F3.
I tired reinstalling xnview, and it didn't help. I tried playing with options, and everything seems all right, I marked open in associated program for other file types, but it doesn't do it.
please advise.