Load-balancing RDS farms often run PDF-XChange products on different hardware from that used to apply the key, which results in the seed used to encrypt the key being unavailable at run time, the hash failing and FigureAdministrative Command Prompt, Sample Command Line. The license file is known as an XCVault file, which is a file WHAT’S NEW IN VERSION Install a license key using a registration key file?Click Install Key after navigating to Tools & Settings > License Management > Plesk License K