Hello August97 - You might find it better to start a new post instead of latching on to a very old post.
There is at least one serious "deprecation" regarding writing windows services, but unless you are dealing with that, I haven't found any that have affected me. However - it has been almost 7 years since I last worked with VB5.
The code should "port" directly. Many of the common controls and other controls are different in VB6, and using them might require a little rework.
Woody Z
http://www.learntoprogramnow.com