Old feature

I was looking a some RB 5.5.4 code today And in the IUD I notice two controls were tied together with a line. When I clicked on the line it showed a property with code that basically said if this checkbox is checked the other control will be enabled. Does anyone remember how this worked or if it is still around?

This was called control binding if memory serves and is no longer a feature. I think it was removed in the 2005 timeframe.