SonarSource delivers what is probably the best static code analyzer you can find on the market for VB6. Based on our own VB6 compiler front-end, it uses the most advanced techniques (pattern matching, dataflow analysis) to analyze code and find code smells, bugs and security vulnerabilities. As for any product we develop at SonarSource, it was built on the following principles: depth, accuracy and speed.
SonarVB6 has a great coverage of well-established quality standards. The SonarVB6 capability is available in any development chain for automated code review with self-hosted SonarQube.