sspitzer%netscape.com 3ba3c0cafc check for existence before NS_ADDREFing.
this was causing a crash in smtpTest, pop3Test and nntpTest, where we
weren't registering the EventQueue component.

also, make these destructors virtual.


git-svn-id: svn://10.0.0.236/trunk@30609 18797224-902f-48f8-a5cc-f745e15eee43
1999-05-07 00:09:46 +00:00
..
1999-04-13 18:15:27 +00:00