Stand alone encryption program external HDD?

Hiya guys long term lurker finally registered!

I have a question, is there a decent program out there to encrypt data on an external hard drive, that is stand alone and can be run from the HDD, ie i dont have to have the program to unencrpyt the data installed on the machine i wish to view the data.

I have found one so far but it only support fat32 which is a bit useless as my HDD is 120gb.

 

I found this one but I don't see any mention of of what file systems it supports.
"Then you have to migrate Private Disk and the image to the removable disk, by copying these data to it:
- The encrypted file-image itself
- All the files from C:\Program Files\Dekart\Private Disk (help files are optional)
- dkar.dll from C:\Windows\system32 (and versnum.dll if you use the non-Light version)
"

http://www.dekart.com/howto/howto_disk_encryption/howto_portable_software/

 

Thanks man, i decided to format the drive with FAT32 though so i could go with Keynesis - Lockngo, it works really well and encrypts decrypts amazingly quick.

Also none of the files on the HDD are visable in DOS, or MAC.

 

Link for Keynesis - Lockngo if you are interested. USD$19 for full version.
Demo version available. Not for NTFS. :cry

http://www.keynesis.com/products/

Bazza