Obtain the CPU serial number, hard disk ID, and nic MAC address.

Private void getinfo ()
{
String cpuinfo = ""; // CPU serial number
Managementclass cimobject = new managementclass ("win32_processor ");
Managementobjectcollection MOC = cimobject. getinstances ();
Foreach (managementobject Mo in MoC)
{
Cpuinfo = Mo. properties ["processorid"]. value. tostring ();
Response. Write ("CPU serial number:" + cpuinfo. tostring ());
}

// Obtain the hard disk ID
String Hdid;
Managementclass cimobject1 = new managementclass ("win32_diskdrive ");
Managementobjectcollection moc1 = cimobject1.getinstances ();
Foreach (managementobject Mo in moc1)
{
Hdid = (string) Mo. properties ["model"]. value;
Response. Write ("hard disk serial number:" + Hdid. tostring ());
}

// Obtain the hardware address of the NIC
9558821702001755616


Managementclass MC = new managementclass ("win32_networkadapterconfiguration ");
Managementobjectcollection moc2 = mc. getinstances ();
Foreach (managementobject Mo in moc2)
{
If (bool) Mo ["ipenabled"] = true)
Response. Write ("MAC address \ t {0}" + Mo ["macaddress"]. tostring ());
Mo. Dispose ();
}
}