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Free disk encryption software for PCs and PDAs
(PDA version of WWW site)

FreeOTFE v. FreeOTFE Explorer Comparison
FreeOTFE and FreeOTFE Explorer both have a the same aim - the secure storage of bulk data, while making it readily accessable to authorised users.

FreeOTFE and FreeOTFE Explorer are both fully compatible with each other (and also with FreeOTFE4PDA) - encrypted volumes created with one can be used with the other.

They both run under MS Windows (with a PDA version of FreeOTFE also being available - FreeOTFE4PDA).

However, there are a number of key differences between them, which are summarised below:

Note: FreeOTFE, FreeOTFE Explorer and FreeOTFE4PDA are fully compatible with each other - encrypted volumes created with one of them can be used with either of the others!

  FreeOTFE

Screenshots

FreeOTFE Explorer

FreeOTFE Explorer main dialog

Installation requirements Installation not required!

Can be used in "portable mode" which allows full functionality without having to be installed. However, because this involves starting device drivers, starting portable mode does require Administrator privileges.

Installation not required!

Driverless operation means it can be used by any user, anywhere - with no special requirements!

Administrator privileges Administrator privileges are not required if installed.

In common with all disk encryption systems however, it uses device drivers which require Administrator privileges to install (after which any user can use it), or to start "portable mode".

Administrator privileges are not required at all!

Driverless operation means it can be used by any user, anywhere!

Operation Operates by creating a virtual drive; anything written to, or read from which is automatically encrypted/decrypted on the fly. Operates via an MS Explorer-style interface, with options to extract/store files, directories, etc.
Partition support Supports of encrypted partitions. Doesn't currently support the use of encrypted partitions (Note: This is currently being implemented).
Filesystem support Works with any filesystem, without restriction. Encrypted volumes may be stored on any filesystem, though at present the encrypted volume must be formatted as FAT (i.e. any of FAT12/FAT16/FAT32).