anchor.diff:  	print(S[[System rocktree exists     : "$ROCKS_TREE"]])
   end
   
  -vars.LOCAL_TREE = os.getenv("APPDATA")..[[\LuaRocks]]
  +vars.APPDATA = os.getenv("APPDATA")
  +vars.LOCAL_TREE = vars.APPDATA..[[\LuaRocks]]
   if not exists(vars.LOCAL_TREE) then
   	mkdir(vars.LOCAL_TREE)
   	print(S[[Created local user rocktree: "$LOCAL_TREE"]])
  
positive.code:   LUA_PATH :   $ROCKS_TREE\share\lua\$LUA_VERSION\?.lua;$ROCKS_TREE\share\lua\$LUA_VERSION\?\init.lua
    LUA_CPATH:   $ROCKS_TREE\lib\lua\$LUA_VERSION\?.dll
  
  ]])
  os.exit(0)
  
negative.code: -- Cleanup
  -- ***********************************************************
  -- remove regsitry related files, no longer needed
  exec( S[[del "$FULL_PREFIX\LuaRocks.reg.*" >NUL]] )
  -- remove pe-parser module
  exec( S[[del "$FULL_PREFIX\pe-parser.lua" >NUL]] )
  
  -- ***********************************************************
  -- Exit handlers 
  