I have made an application where I send Outlook e-mail via Excel. Since
I don't know what version of Excel the user has I need a way to find the
correct reference to the MS object library.

I have seen a reference to a general "obl" that works regardless of
Outlookversion. Does anybody know where I can find it?

How can I check what mailprogram the user is running as standard,
Outlook or Outlook Express? Depending of answer I will use different
code to send mail. If the user is running a mailprogram other than MS I
would like to end the process with a message to the user.

Thanks in advance