C:\Users\xxx>subst /?
Associates a path with a drive letter.
SUBST [drive1: [drive2:]path]
SUBST drive1: /D
drive1: Specifies a virtual drive to which you want to assign a path.
[drive2:]path Specifies a physical drive and path you want to assign to
a virtual drive.
/D Deletes a substituted (virtual) drive.
Type SUBST with no parameters to display a list of current virtual drives.
C:\Users\xxx>subst L: /d
C:\Users\xxx>subst L: D:\DevPrograms\LuaForWindow5.1_win32
SUBST将一个路径映射为一个虚拟盘符,path使用短路径。
PS:
Lua网址:
官网:http://www.lua.org/
http://code.google.com/p/luaforwindows/
下载:
http://luabinaries.sourceforge.net/download.html
Windows 7 Path环境变量255限制的解决办法,SUBST
原文：http://www.cnblogs.com/wucg/p/4073283.html