ActiveX Exe Object Question

[Winla]

Could someone please tell me the difference using New or CreateObject to create a class object from an Activex exe.

for instance I have class called printers.printclass(Exe) and Letters.Parameters(dll)

then, In the Client code:

   private jdp as Letters.Parameters
   Private WithEvents PrintL As Printers.PrintClass
   
   Set PrintL = New Printers.PrintClass
    'OR 
    Set PrintL = CreateObject("Printers.Printclass")
    'I just use one of above two lines
     'then jdp is created here
    PrintL.StartPrint jdp  'call the object method with a parameter

I got an error from last line before starting executing all code, saying "error in loading dll"

So, I would like to clarify the difference between New and CreateObject and If you could give me some leads on the error, that would be great too. Thanks for your help