VMS Help DCE_IDL, ARGUMENTS, -no_cxxmgr  *Conan The Librarian (sorry for the slow response - running on an old VAX)

   -no_cxxmgr

   Prevents the compiler from overwriting the manager class header
   file.   Use this argument in conjunction with the -lang cxx
   argument if you implement application-specific C++ code in the
   manager class header file.