
Okay, so there's a lot wrong here.
1) Most of the questions are redundant. Please consolidate all the tedious questions into one, or two if you count UAC: user opens plugin. TC realizes it's already installed and asks to overwrite it. "Yes". Then the inevitable UAC question. "Yes". That's it. Don't ask anything anymore, you've got all the answers needed to go ahead and overwrite the plugin.
2) Why the "access denied" at the end? Aren't I admin by now? Surely an admin can overwrite a plugin? It could be that a file is in use. In that case, how about TC deactivates the plugin before bloody overwriting it?