It's a dual license. If you use Qt in non-commercial software, the GPL applies and you pay no licensing fees. If you use Qt in commercial software, licensing fees are due to TrollTech. Chris On 4/18/06, Alan Gauld <alan.gauld at freenet.co.uk> wrote: > [snip] > TrollTech own Qt, their licensing arrangements seem a tad complex to me. > Try their web site. > > Alan G.