GRDPTADJ: Disk Parameter Table Adjuster Driver Ver 1.0 Installation instructions. ~~~~~~~~~~~~~~~~~~~~~~~~~~ 1) Copy the driver file GRDPTADJ.SYS into your c: root directory 2) Place the following line in your config.sys: DEVICE=GRDPTADJ.SYS 3) Reboot your system. NOTES. ~~~~~~ Do not install this driver while you are running Windows 95 as it will degrade the performances of your system and does not allows GRDuw properly work. Use this driver only to access 1.68Mb or 1.72Mb floppies on systems with MS-DOS version lower than 7.00. Disclaimer. ~~~~~~~~~~~ Every efforts has been done to make this driver work without problems. Anyway I cannot garranties that this driver will works on every system and under all circunstances. Use it with on not vital data at YOUR OWN RISK. This driver is absolutely FREE and must be distributed free.