VMS Help CC, Messages, NOLONGLONG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> 64-bit integral types are not supported on
                this platform.

 Description    64-bit integer types are not supported on the VAX
                platform.

 User Action    Change the type to an integer type that is supported
                on VAX, or compile the application on a platform that
                does support 64-bit integers.