Spamming in Yahoo Messenger

Do u want to irritate your friends on yahoo messenger here is a way to do that.
Just hold ctr+shift+r for some time. This is the shortcut for requesting contact details. Every time you ask for contact details a new window appears in the other persons computer a kind of flaw in yahoo messenger.
NOTE: This is a very old trick and it may not work on some versions of yahoo messenger. Try your luck,
have fun Run Multiple Instances of Yahoo Messenger on same system:
Some of you might be having more than one yahoo ID would like to log in simultaneously. Here is an easy way to do it without installing any sort of software.
You just have to edit the registry and voila there you go.
Follow the instructions from here.
You just have to edit the registry and voila there you go.
Just follow the following instructions:
1. Download the following -multiyahoo.reg and save it to your hard disk.
2. Double click on it.