总是提示需要验证证书层级，解决办法下载：Rights Management Services (RMS) Administration Toolkit for Service Pack 1 (SP1)
参考地址：http://www.microsoft.com/en-us/download/confirmation.aspx?id=1672
http://blog.csdn.net/kh888/article/details/2743541
http://520111392.blog.51cto.com/72231/342967