I want to write a software, which defines it's own fileformat, eg. *.smx-Files. I want something like < a href="somefile.smx" >... < / a > in my html-code, or an embed or object-tag - i don't care. When a click occurs, my application (an ordinary exe) should start (and possibly get 'somefile.smx' as parameter). Does anyone know how to solve this in a as portable as possible way?