This shrinkit package contains five files:
    readme, c.system, gs.system, opsys, and shell.

When unbinsciied and unshrinkited they form 
part of the ProDOS 8 disk restoration utility
known as ProBlock.  This is not the complete package.

If you have an Apple IIgs you must use the gs.system 
loader.

If you do not have an Apple IIgs, but do have an 
Apple II or compatible, please use the c.system 
loader.

If you choose to distribute this package, please
distribute it intact, and without modification.

ProBlock is a shareware product, marketed by its
author, Michael Pender.

This package includes ProBlock version 3.0.

To receive the complete package, including the
documentation, ProBlock must be ordered from:

            Michael Pender
            1480 Mapleton Avenue
            Suffield, CT 06078

Al rights are reserved by the author, Michael Pender,
copyright 1991.  

But as this product is shareware, please feel free to 
distribute this package at will.