I've been using Cryptor successfully for quite some time, but have run into a problem under Win2K3 Server where it said the C40FOX90.FLL file was invalid. On one person's server, I dropped in the MSVCP71.DLL file into the app's folder and it solved the problem. With another server, this did not solve the problem. Then recently it has shown up in XP Pro. One customer had been running the app fine in XP Pro, but then it stopped working and gave the "invalid" error message. Using MSVCP71.DLL did not help. I've been researching this, but am not finding anything and XiTech seems to have dropped off the face of the planet. No one I know that has tried to contact them has ever gotten a reply, though they still have a web site up (the "News" page is very outdated). Does anyone have any suggestions on how I might overcome this issue (I know that I can directly use the Cryptor DLL, but was hoping to avoid program mods, if possible).