Ok. pkunzip is similar to winzip, it will uncompress the files. It's command line based, so you may have a tough time with it. That's why I say, download and install winrar.
Then move the contents of all 15 disks into one big directory.
Right click on the first file in disk one, then unzip it with winrar, if you're lucky, winrar will be able to extract it, along with all 15 of the other disks.
If that fails, try running pkunzip and see if you can get all the files extracted.
Once extracted, you'll probably have the full program, or an installer with all the needed files in one folder. You can run it and see what happens.
The batch files probably just auto-run pkunzip to unzip the packages. Open the two batch files in notepad and let us know what the text is.
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