C#调用net.exe发送消息

默认情况下，WinXP SP2的Messenger服务是禁止的，如果需要使用必须先启动该服务。

//发消息
private void NetSendMsg(string strIp, string strHostname, string strMsg)
{
try
{
Process sendprocess =new Process();
sendprocess.StartInfo.FileName = "net.exe";
sendprocess.StartInfo.Arguments = "send " + strIp + " " + strMsg;
sendprocess.StartInfo.UseShellExecute = false;
sendprocess.StartInfo.RedirectStandardOutput = true;
sendprocess.StartInfo.RedirectStandardError = true;
sendprocess.StartInfo.CreateNoWindow = true;
sendprocess.Start();

string strSend = sendprocess.StandardOutput.ReadToEnd();

if (strSend.IndexOf("消息已经送到 "+strIp+"。") != -1)
{
lb_Info.Items.Add(DateTime.Now.ToLongTimeString() + "发消息到 " + strHostname + ":" + strMsg);
}
else
{
lb_Info.Items.Add("发消息到" + strHostname + "失败!"+DateTime.Now.ToLongTimeString());
}

}
catch(Exception ex)
{
lb_Info.Items.Add(ex.Message+DateTime.Now.ToLongTimeString()+"发消息到" + strHostname + "失败!");
}
}