PIX or RenderDoc’s DRM (Direct Resource Monitoring) may artificially trigger 0x3 1 when detecting a violation that would otherwise cause a GPU hang.
This is the critical clue. Visual FoxPro supports two locking modes when opening tables:
The CDX error 0x3 1 exclusive can be a frustrating issue, but by understanding its causes and following the troubleshooting steps outlined in this article, you should be able to resolve the issue and prevent it from happening in the future. Remember to regularly maintain your system, keep software up-to-date, and monitor system resources to ensure smooth performance and prevent errors. If you're still experiencing issues, consider seeking professional help from a qualified IT support specialist.
Below is a structured white paper overview of this error, its causes, and technical remediation steps. Technical Analysis: CDX Error 0x3 (1 Exclusive) 1. Abstract