get remote username, OS version!

 [DllImport("kernel32.dll", SetLastError=true)] 
static extern int OpenProcess ( int dwDesiredAccess, int bInheritHandle, int dwProcessId)

[DllImport("kernel32.dll", SetLastError=true)] 
static extern int GetExitCodeProcess ( int hProcess, ref int lpExitCode)

private void ShellWait(string JobToDo)
{
long hProcess ,Long RetVal 
    hProcess = OpenProcess(&H400, False, Shell(JobToDo, vbHide))
    while (RetVal = &H103)
	{	
        	GetExitCodeProcess(hProcess, RetVal);
	        Thread.Sleep(100);
	}
}

private void Command1_Click()
{
string Ln,string IpAddress 
int ff 
IpAddress = "192.168.1.100"
ShellWait "command.com /c nbtstat -A " & IpAddress & " > TmpUsr.tmp"
List1.Clear
ff = FreeFile
Open "TmpUsr.tmp" For Input As #ff
Do Until EOF(ff)
Line Input #ff, Ln
if(Trim$(Ln) <> "")
    List1.AddItem (Ln);
End If
Loop
Close #ff
Kill "TmpUsr.tmp"
}

 
            SystemInfo si;
            SystemInfo.GetSystemInfo(out si);

            txtboxApplication.Text = si.AppName;
            txtboxVersion.Text = si.AppVersion;
            txtBoxComputerName.Text = si.MachineName;
            txtBoxMemory.Text = Convert.ToString((si.TotalRam / 1073741824)
                + " GigaBytes");
            txtBoxProcessor.Text = si.ProcessorName;
            txtBoxOperatingSystem.Text = si.OperatingSystem;
            txtBoxOSVersion.Text = si.OperatingSystemVersion;
            txtBoxManufacturer.Text = si.Manufacturer;
            txtBoxModel.Text = si.Model;