Calling CWnd.CreateControl, how do I pass license string?

[User (Legacy)]

I have an app that runs correctly on my development box, 

but when I try and run it on another box where I have installed 

and registered sfxbar.dll, cfx4032.ocx and cfx4032.dll, it 

still crashes. 

I think the problem is that I am calling CreateControl directly, 

i.e. not building the charts in the IDE.  I've been passing NULL 

for the license string on my development box, which I'm guessing 

works because the controls have been installed there. 

When I run "About ChartFX", I can see the loooong character 

license string, but when I try and paste that into a C++ program, 

I get a "cannot convert char[55] to BSTR" error. 

Any clues?