My Outlook Express was crashing

I just found out why my Outlook Express program was crashing. This dude was sending me email messages that were digitally signed. Everytime I would attempt to open one of them, my OE would freeze. See the circled message with the funny "ribbon" icon on it?
Enabling the "Revocation Checking" will cause the problems. When clicking to read a "digitally signed" email, it can freeze or crash your system when opening. How annoying! Evidently, the program's attempt at checking the sender's certificate will cause Outlook Express to go slackjaw. It can also lockup Outlook Express when sending a digitally signed message.

To fix that, turn off the revocation checking at Tools, Options, Security, Advanced.