Backward Compatability issue

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Hello Experts,
Created a DLL using VC9.0 and trying to make use of that DLL in VC6.0/VC8.0. But it doesn't work as expected. Programmed in such a way that the compiler doesn't do any name decoration for the method names. I verified the DLL function names using "Dependency Walker" also.

I would like to know the step by step procedure, how to make sure that my DLL works in all target machines (VC6.0, VC7.0 & VC8.0)

Thanks,
Sankar.

Posted 10-Aug-11 17:53pm

sks83

Updated 10-Aug-11 18:20pm

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sks83 · Answer 1 · 2011-08-15T18:41:00

Hi KarstenK,
I am aware of linking a DLL statically and dynamically. But the problem here is it doesn't work in the following scenario,

1) Created a DLL using VC9.0 in such a way that it doesn't do any name decoration to function names.

2) Tried to make use of that DLL in VC8.0 or VC6.0. I tried both of ways of linking a DLL, But it doesn't work. The same DLL works fine with an application built using VC9.0.

Regards,
Sankar.

KarstenK · Answer 2 · 2011-08-11T23:06:00

Solution 1

you need to link staticly and use undecorated names.

And use GetProcAddress to get a pointer to the function after LoadLibary.

Have a lot of fun... ;-)

Posted 11-Aug-11 23:06pm

KarstenK