You can use ITCGetSerialNumber() from the Intermec Device Resource Kit to do
this. It's a native function, but is easy to P/Invoke e.g.

using System.Text;
using System.Runtime.InteropServices;

[DllImport("itc50.dll")]
private static extern int ITCGetSerialNumber(StringBuilder buffer,
int bufferSize);

public string GetSerialNumber()
{
// Serial number is 11 digits
StringBuilder buffer = new StringBuilder(12);

// Returns HRESULT so non-negative result means success
if (ITCGetSerialNumber(buffer, buffer.Capacity) >= 0)
{
return buffer.ToString();
}
else
{
return "00000000000";
}
}

Note that itc50.dll should already be installed by default on your CN3.

You can download Resource Kits for accessing other Intermec-specific
functionality from the Intermec Developers Library at
http://www.intermec.com/idl

Hope that helps,
Darren

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