lARP64Pro is a 64 bit anti-piracy and anti-cracking program with implemented compression, based on LZMA technology. Our 64 bit protector works on any windows x64 operating system. lARP64'ing does not affect the original application's functionality in any way nor does it require additional coding. Unpacking and decryption are performed automatically. This whole process is not noticed by the protected application. Also, protected programs run without extracting files to disk. lARP64Pro compresses and protects all native 64 bit applications. Although lARP64Pro is primarily meant for developers, it has been a special concern to provide an extremely easy tool in its handling.