AFX_RESOURCE_DLL becomes undefined

My App has a separate DLL for all resources. The DLL has 4 configurations, Debug+Release for German and English(US).
When compiled, the DLLs are nearly identical, because AFX_RESOURCE_DLL becomes #undefined somehow, and so the code

#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_XXX)

(within the .RC file) is always true.
But I HAVE defined AFX_RESOURCE_DLL in EACH configuration, and XXX is ENU in the english configs, and DEU in the german configs. Everything is defined in Project/Settings/C/C++/Preprocessor definitions. Is this line restricted in the length ???

Or who #undefines this Macro ?

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PC-AlexAsked:
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abancroftCommented:
Make sure that you have also set the #defines in Project/Settings/Resources/Preprocessor Definitions.
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PC-AlexAuthor Commented:
That helped!

I didn't know that there are separate "Preprocessor definition" boxes.
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