Where the message goes?
It goes to Messenger Plus! It tells it that we want to install/update a plugin. So Messenger Plus! unloads all its plugins and after 5 seconds it reloads them. In those 5 seconds, you have to copy the plugin in the plugins directory.
Code for VB...
I'm sorry, I don't program in VB...
But... I already made a plugin installer... It doesn't do VB plugins though...