Upon rebooting after attempting to install Process Guard ver 2.000 on a Widows 2000 Pro dual-boot system, a message pops up stating, "Could not load Process Guard keyfile (procguard.pkf). Please make sure it is in your Process Guard directory before continuing". In fact, procguard.pkf is not in the Process Guard directory nor anywhere else. I have twice downloaded the install file and done a thorough uninstall between installations. Following uninstall, I have insured that "Procguard.dll" and "Procguard.dll" are no longer installed at C:WINNT\System32; also, I have insured that Procguard.sys is no longer installed at C:WINNT\System32\drivers. Prior to attempting to install version 2.000, I uninstalled ver 1.3, because it caused Windows 2000 Pro's Event Viewer to display an Error associated with the "Service Control Manager". From https://www.wilderssecurity.com/showthread.php?t=26552, I learned that ver 1.3 had a rogue file, pg_msgprot.exe, that was the source of the error. Except for the Event Viewer's error message, ver 1.3 worked fine. I hope now that, with the help of this forum, ver 2.000 will work too.