With A-Patch for yahoo messenger you can remove the advertisements and also run more than one instance of yahoo messenger 9

a-patch-for-yahoo-messenger

One of the good option provided with a-patch for yahoo messenger is you can any time undo Remove Advertisements from yahoo messenger and Polygamy ( open multiple instances of yahoo messenger ) any time by selecting the check shown in the image above which says Undo the above options।

A-patch is cool small freeware which does not need to be installed, it works fine with yahoo messenger 8 and I have just tested it with the latest version of yahoo messenger just released i.e 9.0.0.1912.

Download Y.AddsRemover 1.00