VBKeys.com... they have all sorts of cool tricks you can do with your program. One neat one I found is tooltips, which is sorta like a help popup. http://www.vbkeys.com/ctl21.aspx
No, I don't memorize API calls, sorry.
If you mean... could I make one after finding the individual API's online? Then, yes.
I memorize APIs o.O Maybe because I have a good memory. But any way if any one every need to look up a api, there should be a api32.txt with vb6 somewhere? Or maybe I will post it.