Andrews,

also, I would make sure that that if you mention a constant in your main program in uppercase, it's in uppercase in the .H file. I know that variables are non case-sensitive, but I'm not sure if it's the case with #defines. I'm at home, so can't test this.

Regards,
Neil

*
* Relevant bits
*
#DEFINE TIT_APLICACION "Prueba. Ver. 1.0a"


=messagebox("El sistema no se ha inicializado correctamente:" + chr(13)+ chr(13)+;
"<< no se ha encontrado el directorio de datos >>" + chr(13)+ chr(13)+;
"pongase en contacto con el administrador del sistema.",mb_iconostop,tit_aplicacion)