How do I make a browser and a mail program the default

I wrote my own mail client and Web browser and I wish to make these program the default one.  That is when a user clicks on an email address on a Web page I want my mail client to be invoked.  I think it is something in the registries but not sure what.
skylinkaAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

d003303Commented:
Take a look at the registry:
HKEY_CLASSES_ROOT\mailto\shell\open\command
defines the program to be used when mailto is clicked or executed from the command line/run dialog box.
HKEY_CLASSES_ROOT\.htm and HKEY_CLASSES_ROOT\.html (Default) string value point (if IE is default) to htmfile.
HKEY_CLASSES_ROOT\htmfile\shell\open\command is the command line to be executed when a HTM file is clicked.

Slash/d003303
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.