求助DRC错误。急

小弟在做DRC检查时遇到如下错误
Checking Pins and Pin Connections
ERROR [DRC] System error detected. Check terminated.
ERROR [NET0016] There is no association for file extension .DRC. Configure this in the Windows Explorer.
之前卸载了另外一个软件，有可能把相关的东西卸载了，提示貌似是找不着与DRC文件链接的程序了。该如何设置呢，高手请指教啊