I also know of several free third party tabcontrols that have close buttons, but I can't find them anymore so quickly. Shouldn't be too hard to find though. One thing I noticed is that none of them really look very good, and none of them use the windows theme that the user is using at that time. I've searched around for a bit and I can't figure out how to draw a tab header in the system theme style. I don't think it's possible