Converting to 64 bit

[MAF]

I am trying to convert some older code that we have in C++, and I get the
following error message when I attempt to compile the assembly in 64 bit.

Error 1 fatal error C1083: Cannot open include file: 'atlbase.h': No such
file or directory c:\ep3.3\shared components\heqnproc\source\stdafx.h 10

The same code works fine if I compile it in 32 bit mode.

Any ideas?

 

[Ben Voigt [C++ MVP]]

I am trying to convert some older code that we have in C++, and I get the
following error message when I attempt to compile the assembly in 64 bit.

Error 1 fatal error C1083: Cannot open include file: 'atlbase.h': No such
file or directory c:\ep3.3\shared components\heqnproc\source\stdafx.h 10

The same code works fine if I compile it in 32 bit mode.

Any ideas?

Make sure your preprocessor options are the same in both configurations.
The only things that should be different are having WIN64 defined.