1 Exclusive - Cdx Error 0x3

handle.exe -a TABLENAME.CDX

Which game are you trying to launch when you see this error? cdx error 0x3 1 exclusive

If the error persists, the index file itself (often the .cdx file) may be corrupt. handle

This is the most frequent culprit. Your antivirus might have "silently" removed a file required by the CDX launcher. Open your Antivirus (or Windows Defender). Protection History Quarantine If you see files related to your game (often ending in cdx error 0x3 1 exclusive

The (1 exclusive) suffix indicates that the application or command attempted to —i.e., it demanded sole control over the DBF and its associated CDX file. The error occurred during that exclusive-open attempt.