commit https://github.com/vim/vim/commit/a24f0a550fed3d9773800cf6be4efd072fff20ec Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 17 19:39:00 2016 +0100 patch 7.4.1123 Problem: Using ":argadd" when there are no arguments results in the second argument to be the current one. (Yegappan Lakshmanan) Solution: Correct the w_arg_idx value.

/* if_ole.cpp */
void InitOLE __ARGS((int* pbDoRestart));
void UninitOLE __ARGS((void));
void RegisterMe __ARGS((int silent));
void UnregisterMe __ARGS((int bNotifyUser));