Protect your Microsoft Excel(R) workbooks from reverse engineering, analyzing and copying!

LockXLS is a new security solution for Excel. LockXLS protects your workbooks from reverse engineering, analyzing and unauthorized copying. It will help you to create trial ware or rental ware from your documents, and to protect logic in your spreadsheets.

Main features of LockXLS

LockXLS protects your spreadsheet with a:
Password
Trial period
Hardware based Activation Code (workbook will be locked to specific PC)
Activation Code, bound to USB flash drive
Serial Number
So, you can prevent unauthorized use of your Excel documents.
Spreadsheet could be converted to protected Excel document or to binary application file.
Application is stand-alone and could be distributed without LockXLS Runtime module and other files.
Create rental files using LockXLS. Hardware based Activation Code will unlock spreadsheet only to specified period of time.
Formulas and VBA code are unavailable to user. He will not be able to view and analyse logic of your workbook.
Protect workbooks from cracking VBA passwords and sheet passwords.
On-line activation. Keygen applications for Linux and Windows, also you can provide URL for on-line activation.
Protected spreadsheet and LockXLS Runtime module could be combined into single compact executable file. This setup package will install your spreadsheets and LockXLS Runtime on customer's PC.
Protecting your AddIns (.xla) files in same way, like other Excel documents.
Interface to display your End-User License Agreement with Accept and Decline buttons.
Customize activation messages shown when user opens locked workbook.
Custom icon to applications, created from Microsoft Excel documents.
Your customers will work with protected files in same way as with usual Excel documents.

Other minor features of LockXLS

Time syncronization with Internet Time Servers. Customer will be unable to rollback time and "extend" his evaluation.
Activation Code Generator is included into setup package for LockXLS.
Logic of your workbook could not be copied to other spreadsheet.
Formulas and VBA macros are unaccessible through COM Object Model. User could not write a VBA code to retrieve your formula or macro!
You can add your own protection message (in rtf format with images) to locked workbook. See example ...
There are no limitations to workbook, which should be protected. All features of Microsoft Excel are supported by LockXLS.
Protected spreadsheet model will be as fast as original model.
LockXLS will check that all needed AddIns are installed on customer's PC when workbook is opened.
Data in spreadsheet will be encrypted with secure 128-bit algorithm.
Save/load data to external file.
LockXLS supports shared files.
Data on hidden sheets could not be accessed from external application.
Splash screen with custom image.
LockXLS has very simple interface and will be easy to use

Более подробно: http://www.lockxls.com