Fiddler
以前安装过Fiddler 后来卸载了 再次安装完以后打开的时候出现了问题：
打开Fiddle4，提示“Machine-wide Progress Telerik Fiddler installation has been found at .E:\ceshi\study\Fiddler\Fiddler2\ Please, use that one or uninstall it …”
解决方法：
删除注册表后，然后重新安装新版的就行了
“HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fiddler2”
"HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Fiddler2
注册表怎么打开：如下图所示