[The Mysterious J]

I've tried the instructions from Word MVP. I believe I have followed
everything correctly. The pasted macro created the following compile error:
"Compile error: User-defined type not defined.": with the following lines:

Dim oOutlookApp As Outlook.Application
Dim oItem As Outook.MailItem

I read the post where Doug Robbins indicates:
Recheck again whether the Outlook Object Library still has a checkmark
against it. Almost certainly, that is the cause of the problem.

I don't know where to find that.

Also, I tried just removing those two lines of code, and the macro ran
perfectly except it didn't attach anything to the e-mails.

Thanks in advance for your assistance.