VB projects in AutoCAD 2002 & 2004

I have some VB applications which draws on AutoCAD dwg.
These projects have a reference to ACAD.TLB library, and I used the
"getobject(, "AutoCAD.Application.15")" code to take the control of dwg.
Now, with AutoCAD 2004 the code I should use is "getobject(,
"AutoCAD.Application.16")", but the ACAD.TLB library is no more available
and has been replaced with ACAX16ENU.TLB library. So, chancing the reference
to the new .TLB library in my projects they correctly work in ACAD 2004.
But the problem is that they don't keep on working in ACAD 2002.

How can I do to make them work both in ACAD 2002 and ACAD 2004 versions?

Thank you

Emanuele

 

I don't have the best answer for, because I believe you can do both at the same time with a conditional statement and I think that is what you a looking for, but I have mine built seperatly.

--
David Wishengrad
President & CTO
MillLister, Inc.
Software for measuring and stretching multiple 3D solids.
Http://Construction3D.com

 

Contrary to what Dave says, there's no conditional
compilation, and if you use early binding, you cannot
build a single project that will bind to either type
library.

You have two choices:

1. late binding (and you will need to use the version-
independent progid "AutoCAD.Application"), and not
support multiple installed releases.

2. Completely separate version-specific projects.

 

:no:

Is better to make two DLL for each version of AutoCAD

 

Tony's right. What I do is first calling the ACAD's progID (which is
universal for all ACAD applications installed on target computer) and then
determine the version of running ACAD - if there's a need for some
vertical's specific functions and dependancies.