dotNet Protector is a powerful .NET code protection system that prevents your assemblies from being decompiled. Console exe, windows exe and windows services,. You can protect a whole application (main exe, referenced dlls) in a single executable....
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Support for dotNet Protector 64 bit x64 is available from the
publisher/developer site 
This download is a demo of dotNet Protector 64 bit x64. "Demoware (also known as trialware) is commercial software released for free (shareware) in a version which is limited in one or more ways." More info at
Wikipedia.
Soft32 (ITNT) cannot be held liable for issues that arise from the download or use of these software products. We encourage you to determine whether this software or your intended use is legal. Even if we try to check the program files for viruses, we cannot guarantee 100% that they are clean. For your own protection always check downloaded files for viruses, spyware and malware.