From a command window, navigate to the directory that contains the vmware-workstation-full-7,x.exe file...
enter in the command: VMware-workstation-full.xxxxxxxx /extract "new directory name in the same directory as the exe file"
It will tke it a few moments to fully extract the files into the new directory it creates.
Once that's done, you should be able to make the batch file with the paramaters for installing. This includes the pre-entered product key, the reboot supression, etc. Since you want to refill the product key, this is really the only option I've been able to discover. I don't see any answer type files within the directory that gets created when you extract the exe file. I've also not seen a reference on if you can create one and what to name it.
Since you purchased 60 licenses for the workstation product, I would imagine that someone at VMware's support center would be willing to help you with automating the installation if this method doesn't work out. I would recommend trying it this way first though. I'd also suggest doing it during off hours so that you can address any glitches that might come up in your environment. If possible, do it to a spare system that no one is really using at the time to ensure this doesn't become a RGE for you.
BTW, there is no .ini file mentioned...
