When I open an excel document and go to file/send to/ mail receipant as
attachment. I get an error that says "Cannot load the mail service. Check
your mail installation". Or get the error message: mapi32.dll is an invalid
Extended MAPI library.

Ran Office 2003 updates but still does not work.

How do I fix this.

Just upgraded my Small Business Server 2000 to Small Busienss Server 2003
with exchange 2003

Please help how do I fix this