updated for version 7.0013
diff --git a/runtime/mswin.vim b/runtime/mswin.vim
index 4072af1..d82b677 100644
--- a/runtime/mswin.vim
+++ b/runtime/mswin.vim
@@ -1,7 +1,12 @@
" Set options and add mapping such that Vim behaves a lot like MS-Windows
"
" Maintainer: Bram Moolenaar <Bram@vim.org>
-" Last change: 2004 May 26
+" Last change: 2004 Jul 27
+
+" bail out if this isn't wanted (mrsvim.vim uses this).
+if exists("g:skip_loading_mswin") && g:skip_loading_mswin
+ finish
+endif
" set the 'cpoptions' to its Vim default
if 1 " only do this when compiled with expression evaluation