Hello; I am using Borland C++ 6 Evaluaion Version for making dll. Can You help me out from this error. /*Voice.h*/ //#include "CFeatureMatrix.h" //#include "CVoiceInterface.h" //#include "CVoicePrint.h" BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fwdreason, LPVOID lpvReserved) { return 1; } When I compile to make dll I get "stddef.h:Declaration terminated incorrectly" error and second line shows "stddef.h:Qualifier 'std' is not a class or namespace name". If I remove Comment for including the header file I get "Voice.h:Declaration terminated incorrectly" /*Voice.h*/ #include "CFeatureMatrix.h" #include "CVoiceInterface.h" #include "CVoicePrint.h" BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fwdreason, LPVOID lpvReserved) { return 1; } Regards Deepak ********************************************************* Disclaimer: The contents of this E-mail (including the contents of the enclosure(s) or attachment(s) if any) are privileged and confidential material of MBT and should not be disclosed to, used by or copied in any manner by anyone other than the intended addressee(s). In case you are not the desired addressee, you should delete this message and/or re-direct it to the sender. The views expressed in this E-mail message (including the enclosure(s) or attachment(s) if any) are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of MBT. This e-mail message including attachment/(s), if any, is believed to be free of any virus. However, it is the responsibility of the recipient to ensure that it is virus free and MBT is not responsible for any loss or damage arising in any way from its use ********************************************************