FiveTech Software tech support forums

Hello,

Normaly I don't create help-files for my programs, but one costomer asked me to create one.
Does anyone use chm-files? If so, what program do you use?
I found different programs, but which one is better,... maybe free?

I maintain extensive documentation using Help & Manual, but it is not free. I've used it for years and it's very versatile in its outpu.