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CryptoLock ™ v1.5.0 build(1209)

Download the FREE decrypt only version of CryptoLock to decrypt .CEA and .CIP files as well as encrypted LetterMark® email attachments

This version can be upgraded to the full version using an activation key from our online store or try it using a free trial by selecting 'Get Activation Key' from the Help menu after you have installed CryptoLock on your PC.
CryptoLock Setup Download(1.2MB)

More information about CryptoLock.

Note: This download is intended for use on the computer's hard drive. If you would like to use CryptoLock on your USB device, please see our Portable Security Suite below.


A setup fee is applied to the purchase of the first year’s licenses (waived for three year agreements). Three templates are normally included with the initial license. Additional design services are available for an extra fee.

LetterMark® users will need to download the software by logging in to their LetterMark.NET personal account and accessing the software downloads page at http://www.lettermark.net/personal/download.asp

Note: You will need an active LetterMark account to download the software. Your email address and LetterMark.NET password are required. If you do not know your password, use the link on the page above to recover your password or contact your companies technical support staff.

LetterMark® email is licensed on an annual “right of use” basis, for one or three year periods. License fees include customer support, hosting of email templates and database information and all LetterMark® client software upgrades and new releases during the license period.

For more information about LetterMark® Click Here.

  • RTSZ
  •   Research Triangle Software, Inc.
         1140 Kildaire Farm Road Suite 304
         Cary, NC 27511
  •   Telephone: +1 866-206-2426