can you ping the 200 machine? are you using COM+? seehttp://groups.google.com/groups?q=System.Runtime.InteropServices.COMException:+Exception+from+HRESULT:+0x8004D00E&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=3e036a6d%241%40news.microsoft.com&rnum=3
调试欢乐多
cn.ConnectionString=strCNN;
cn.Open ();
cmd.Connection=cn;
da.SelectCommand=cmd;
cmd.CommandText=cstrSelectCommand;
da.Fill(ds,cstrTABLENAME);
谢谢。