I found a program on the internet called POTASSIUM HYDROXIDE that says it will encrypt your hard drive... then when ever you turn on your computer it will request a password before it even accesses your DOS. If you put in the right password it will load as a TSR that will let your access your encrypted hard drive. But I have a Western Digital Caviar Hard Drive and have the use the W.D. Disk Manager v6.03d that comes with it... this is another program that loads before your DOS... does anyone know if this program Potassium Hydroxide will work with W.D. Disk Manager and work under Win 3.11/95. I don't want to risk gibbling all the info on my hard drive. If not does anyone know of a program that will let me encrypt my hard disk and decrypt it will a password before my DOS is loaded and work with the above programs of mine. If it helps I am using DOS 6.21 with Windows 3.11 ( I'm upgrading to `95 soon ;> ) -FrozenHell (fhell@nether.net)