在Asp.Net中拥有实时可读配置文件的最佳方法

I need to tweak some variables (only in a development setting) without having to restart IIS or anything (so I assume Web.Config is the wrong place to put them). Where is the easiest place to put about 500 config settings that have to be read for every request and written to, like I said, while IIS is running?I need to tweak some variables (only in a devel