open my computer
go to tools --> folder options---> file types
scroll down to (NONE) URL MailTO:Protocol
click on advanced
click on edit
and give this under "Application used to perform action"
give the exe file location of Outlook
Now go to Outlook
go to tools --> options --> others
make Outlook as default email client
Now go to IE
go to tools --> internet options -->programs and
under Email choose "Microsoft outlook"
Now check what you need to do , if it would work
Or Update to Office 2003 Service Pack SP3