Revit Extensions vs Plugins

Question

What is the difference between extensions and plug-ins? I've been writing many plug-ins, and while diffing througg the SDK folder I came across the REX framework and extensions, but im not really clear on what the benifets of one over the other are.

Answer 1

The REX framework and extensions are Revit structure specific and built on top of pure simple Revit API add-ins:

• The REX SDK
• REX content generator
• Structural Analytical Code Checking and Results Builder
• Framing Cross Section Analyser and REX
• Framing Cross Section Analyser and REX in Revit 2015
• REX Add-In Development and Migration
• REX SDK FreezeDrawing Sample