Rubberduck
Every programmer needs a rubberduck. COM add-in for the VBA & VB6 IDE
Rubberduck aims to bring the VBIDE into this century. Rubberduck understands Classic-VB code like no other add-in, giving it superior static code analysis capabilities that go far above and beyond what is possible with simple text-based analysis. Avoid common pitfalls (some not-so-common) with dozens (100+) of configurable inspections. Gain full control over module and member attributes, create a virtual folder hierarchy, and document modules and procedures, all with special comment annotations...