public string MapDrive(string hostName,string path)
{
    string driveLet="";
    if(NotBlank(hostName))
    {
        System.Diagnostics.Process tmp=new System.Diagnostics.Process();
            
        System.Diagnostics.ProcessStartInfo tmp2=new 
            System.Diagnostics.ProcessStartInfo(
            "net","use * \\\\" + hostName + "\\" + path);
        tmp2.UseShellExecute=false;
        tmp2.RedirectStandardOutput=true;
        tmp2.CreateNoWindow=true;
    
        tmp=System.Diagnostics.Process.Start(tmp2); 
        string strOut=tmp.StandardOutput.ReadToEnd();
            
        tmp.WaitForExit();
            
        Regex re= new Regex(@"Drive\s(?<drive>[A-Z])(:)");
        Match m = re.Match(strOut);
        if (m.Success)
        {
            driveLet= m.Groups["drive"].Value;
        }
        else
        {
            MessageBox.Show(strOut);
                    
        }    
    }
    return driveLet;
}