First, please put your mouse over the "?" in CD-Lock and click on "Check for updates" to see if your software is up to date. If it's not then see if the problem persists after installing the latest version. If you have a tech support question not answered here or in the FAQ section of CD-Lock's Help file then please click here. But please check CD-Lock's Help first! Important: Many problems are caused from interference by misguided anti-virus programs. Some don't like us and in their attempts to isolate or correct us just make a mess of everything. So if you're experiencing strange behaivor disable your anti-virus program and see if that helps. If so, then tell it to ignore CD-Lock and your protected media. Please select the question or topic that most closely resembles your question. I can't unlock my CD-Lock/Flash-Lock protected media on Vista or Windows 7.  They will need to be converted. Get the latest and then use that version to convert them to Vista versions. They will still work on XP after the conversion. I registered but sometimes while unlocking my flashdrive I get a message that I'm using an unregistered version.  Insert your flashdrive but do NOT run the unlock program to unlock it. Then start CD-Lock. It should ask you if you want to convert the flashdrive to a registered version. If it doesn't then select "$" on the top menu and then "Register flashdrive" If your version doesn't have that function then get the latest I'm getting "Error #2, Can't run service" when I try to run my CD on another computer. First, get the latest version as described above. Then check to see if cdm.sys is on the CD. If not, then copy it from \Program Files\CD-Lock\cdm.sys and burn it to the CD. I'm using Nero and having problems. Try using XPs CD writer instead. XP CD writing wizard cannot write DVDs Create the DVD in a Work Folder and when done then exit CD-Lock and use your favorite DVD writing software to copy the contents of the work folder onto the DVD Runtime Error 9 Get the latest from http://pc-magic.com/cdl.exe Filenames are being unscrambled but files aren't being decrypted From a customer: Basically, it's very simple! I use Avast (www.avast.com) free antivirus, with this enabled with all default options, files and folders get unscramble but still encrypted. If you disable the AV, then files can be read :)