Multiple user login in yahoo Massager without any software or patch

You can login to to yahoo messenger with multiple user ID without any software or patch. You just have to do a simple Task. First click Start menu and then click run, then type regedit and then press enter. A box will appear now from the box navigate HKEY_CURRENT_USER , then from the list select SOFTWARE , then from the software select YAHOO , then from Yahoo select PAGER , then from Pager select TEST. Now right click on the TEST and then click Dword value. In the right side you will notice a new folder appears, Rename it as Plural. Thendouble click it then select decimal and give the value 1 in the value box and click OK. That's it now try to login in yahoo messenger with multiple ID.