i am playing with run-time loading DLLs, and i found this article here at gamedev.net, explaining how to "fake" exporting a class with an "interface" pure virtual base class... however, when i try to compile, i get a linker error:

Unresolved external ''_pure_error_'' referenced from C:\...\DaDll.obj  

googling for "_pure_error_" came up with an assload of kernel stuff for solaris (not useful, or even understandable, for me)... the borland website is no use at all... and kicking the computer isn''t helping either! i am using the borland command-line compiler... does anyone know what causes this, or how to fix it?