To compile for Bricscad, define the environment variable "BRX_SDK_PATH" and set it

to the root folder where you placed the BRX SDK (for example "C:\BrxSdk").



To compile for AutoCAD, define the environment variable "ARX_SDK_PATH" and set it

to the root folder where you placed the ObjectARX SDK (for example "C:\ObjectARX2007").



Check your global include folders in Visual Studio (Tools/Options/Project and Solutions/VC++ Directories),

and avoid any include folders to the ObjectARX SDK there, as this might confuse

the build configurations for Bricscad (Debug_Bcad and Release_Bcad).



When you have defined the environment variables, you have to close and restart all Visual Studio instances,

otherwise they will not be recognized.