/sys$common/syshlp/helplib.hlb CC, Messages, FILEOPEN  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        An error occurred while attempting to open the source
                file:  <problem>.

 Description    An unexpected error occurred while opening a source
                file.  The message text will contain additional
                information about the failure.

 User Action    Correct the condition that caused the failure.