The most powerful aspect of MS Excel, in my opinion, is the fact that anyone can very easily create good overview
using tables and also create functional calculation programs very quickly using VBA functions and forms.
This is not that straight forward for everyone when using a normal programming compiler environment.
However, a good internal protection system of such files with the underlying VBA code for illegal copying, modifying or hacking,
while still maintaining its usability, has never been high on the MS list.
For quite some time I have been looking for more secure ways to protect my in-house developed Excel / VBA Programs
such that they remain functional for use by anyone within my company but still keeps me in control of it as the developer,
and at the same time blocks the many password recovery programs available through strong encryption.
When I found the solution from LockXLS I have become very enthusiastic about it.
It allows me to create Professional, Functional and Fully Protected End-User Applications of Excel Workbooks but with many additional options
such as time limited licensing, various options to lock and copy protect the application to a specific computer hardware etc.
After trial testing LockXLS, I bought a license and I am very happy to be able to create these end-user executable applications.
I recommend LockXLS for anyone who builds Excel/VBA applications and wants added protection and End User Licensing functionality.
Franklin van den Hout, Ansaldo-Thomassen, The Netherlands.