Coding to check a registry entry is just so much a pain in the butt.. that I have never bothered.. (in this case you would check a registry entry for Adobe Acrobat version # whatever)

If you know how to code in Vbscript you may be able to run a check with Vbscript and then have it perform the decision action.. but that's the best I can think of.. other possibility's lie in 3rd party app's (maybe.. just maybe.. Northcode's program or one of ***********'s can help).. lastly of course there's always custom programming..

Note: That coding in Vbscript would assume that the user has IE 4 or higher on there system (Vbscript comes with IE) and then it would take a 3rd party app to run the script (basically start it in it's default application)

Anyway.. my program will open a default file in a application.. and it's free.. there are various 3rd party programs available as well but most of them cost money.. (you can also use a .bat file.. but it's ugly Check the tutorials section for more info)

Flashtools 4 is available here..
http://board.flashkit.com/board/show...threadid=20493

Info on Flash 5 coding syntax for my tools is here..
http://board.flashkit.com/board/show...threadid=46319

And lastly the latest Beta versions which have certain corrections is available here.. (Advanced knowledge required)
http://board.flashkit.com/board/show...threadid=88493