I have written a plugin where part of that is wanting to zip up one or more files.  Since Trados does not yet support .NET 4.5, I want to use a 3rd party library to make it easy to zip up a folder (e.g. http://dotnetzip.codeplex.com/releases/view/68268).  However, I believe Trados expects all referenced .dlls to reside in the "$(ProgramFiles)\SDL\SDL Trados Studio\Studio3" directory.  

Is there anyway to package up a custom plugin with third party dlls such that when it gets unpacked it will just unpack those dlls into the appropriate directory?  

If not, the thought I have is I am going to have to install the necessary dlls myself into that directory using the installation wizard.

So really my question is, has anyone done something like this before and how did you do it?