This download updates the . net framework 1 . 1 service pack 1 to work correctly with user access control turned on and prevents the user from getting a securityexception with exception message text hook cannot be created Net framework 1 . 1 service pack 1 ,可与启用的使用者存取控制user access control一起正确运作,并防止使用者遇到错误讯息为无法建立拦截程序的安全性例外状况securityexception 。