I notice that the file copy is not being done by the multi-Commander, it is showing me the normal Windows window.
It depends on HOW you starts a copy operation.
Normally MC will do the copy.. But if you do copy / paste the copy operation will be handled by Windows since it might require special handling of Windows.
And when I click to perform the file compression Clicking with the other mouse button and going to the option "MultiCommander" -> "Compress Files" nothing happens
Strange. I cannot reproduce that.
You should get a Pack files dialog where you then select what packer to use and target name.. and the if you press Ok it pack the selected files into a zip (if you selected zip)