VC calls WMI framework

An example of Microsoft msdn
Compiled and tested in vc6

# Include <afx. h> // use the cstring BSTR to convert it to ANSI # DEFINE _ win32_dcom // this bug does not understand // vc6. so standard STL is useless .. # include <iostream. h> # include <iomanip. h> // using namespace STD; // COM component # include <comdef. h> # include <wbemidl. h> # pragma comment (Lib, "wbemuuid. lib ") int main (INT argc, char ** argv) {hresult hres; // defines the return of the com call // Step 1: ---------------------------------------------------- // initialize COM. ------------------------- ----------------- Hres = coinitializeex (0, coinit_multithreaded); If (failed (hres) {cout <"failed to initialize com library. error code = 0x "
A vbs with the same function...
strComputer = "."   ' Dot (.) equals local computer in WMISet wbemServices = Getobject("winmgmts:\\" & strComputer)Set wbemObjectSet = wbemServices.InstancesOf("Win32_Process")For Each wbemObject In wbemObjectSet    WScript.Echo "Name:       " & wbemObject.Name      & vbCrLf & _                 "Handle:     " & wbemObject.Handle    & vbCrLf & _                 "Process ID: " & wbemObject.ProcessIDNext

Enumeration namespace
strComputer = "."Call EnumNameSpaces("root")Sub EnumNameSpaces(strNameSpace)  WScript.Echo strNameSpace  Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\" & strNameSpace)  Set colNameSpaces = objWMIService.InstancesOf("__NAMESPACE")  For Each objNameSpace In colNameSpaces    Call EnumNameSpaces(strNameSpace & "\" & objNameSpace.Name)  NextEnd Sub

Use WMI and VBScript to set the script's default namespace
strComputer = "."Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")Set colWMISettings = objWMIService.InstancesOf("Win32_WMISetting")For Each objWMISetting in colWMISettings        objWMISetting.ASPScriptDefaultNamespace = "root\cimv2"        objWMISetting.Put_Next
Use WMI and VBScript to retrieve CIM namespaces
strComputer = "."Set objServices = GetObject("winmgmts:\\" & strComputer & "\root")Set colNameSpaces = objServices.InstancesOf("__NAMESPACE")For Each objNameSpace In colNameSpaces    WScript.Echo objNameSpace.NameNext
Use WMI and VBScript to retrieve all CIM namespaces
strComputer = "."Call EnumNameSpaces("root")Sub EnumNameSpaces(strNameSpace)  WScript.Echo strNameSpace  Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\" & strNameSpace)  Set colNameSpaces = objWMIService.InstancesOf("__NAMESPACE")  For Each objNameSpace In colNameSpaces    Call EnumNameSpaces(strNameSpace & "\" & objNameSpace.Name)  NextEnd Sub
Use WMI and VBScript to retrieve Win32 providers registered in the Root \ cimv2 namespace
strComputer = "."Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")Set colWin32Providers = objWMIService.InstancesOf("__Win32Provider")For Each objWin32Provider In colWin32Providers    WScript.Echo objWin32Provider.NameNext
Use WMI and VBScript to retrieve all classes defined in the Root \ cimv2 namespace
strComputer = "."Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")Set colClasses = objWMIService.SubclassesOf()For Each objClass In colClasses    WScript.Echo objClass.Path_.PathNext
// Specific WQL instance
objSWbemServices.ExecQuery("SELECT * FROM Win32_Service")objSWbemServices.ExecQuery("SELECT Name FROM Win32_Service")objSWbemServices.ExecQuery("SELECT StartMode FROM Win32_Service")objSWbemServices.ExecQuery("SELECT StartMode FROM Win32_Service WHERE State='Running'")objSWbemServices.ExecQuery("SELECT StartMode, State FROM Win32_Service WHERE State='Running'")objSWbemServices.ExecQuery("SELECT * FROM Win32_Service WHERE Name='WinMgmt'")objSWbemServices.Get("Win32_Service.Name='WinMgmt'")


Below are some WMI query information
Description of the provided program DLL namespace
Active Directory provider
Dsprov. dll
Root \ directory \ LDAP
Map an Active Directory object to WMI.
Event Log provider
Ntevt. dll
Root \ cimv2
Manage Windows event logs, such as reading, backing up, clearing, copying, deleting, monitoring, renaming, compressing, extracting, and changing event log settings.
Performance Counter provider
Wbemperf. dll
Root \ cimv2
Provides access to raw performance data.
Registry provider
Stdprov. dll
Root \ default
Read, write, enumerate, monitor, create, and delete registry entries and values.
SNMP provider
Snmpincl. dll
Root \ SNMP
Access the snmp mib Data and capture the data from the SNMP hosting device.
WDM providers
Wmiprov. dll
Root \ WMI
Provides access to information in the driver of the WDM device.
Win32 provider
Cimwin32.dll
Root \ cimv2
Provides information about computers, disks, peripheral devices, files, folders, file systems, network components, operating systems, printers, processes, security, services, sharing, Sam users, and groups, and more resource information.
Windows Installer provider
Msiprov. dll
Root \ cimv2
Provide access to installed software information.


Win32_processor // CPU Processor
Win32_physicalmemory // physical memory
Win32_keyboard // keyboard
Win32_pointingdevice // enter the device, such as the mouse
Win32_diskdrive // hard drive
Win32_cdromdrive // Optical Drive
Win32_baseboard // Motherboard
Win32_bios // BIOS chip
Win32_parallelport // parallel port
Win32_serialport // serial port
Win32_sounddevice // multimedia settings
Win32_usbcontroller // USB controller
Win32_networkadapter // Network Adapter
Win32_networkadapterconfiguration // network adapter settings
Win32_printer // printer
Win32_printerconfiguration // printer settings
Win32_printjob // printer task
Win32_tcpipprinterport // printer port
Win32_potsmodem // Modem
Win32_potsmodemtoserialport // Modem Port
Win32_desktopmonitor // display
Win32_videocontroller // graphics card details.
Win32_videosettings // Display Mode Supported by the video card.
Win32_timezone // Time Zone
Win32_systemdriver // driver
Win32_diskpartition // disk partition
Win32_logicaldisk // Logical Disk
Win32_logicalmemoryconfiguration // logical memory configuration
Win32_pagefile // system page file information
Win32_pagefilesetting // page File Settings
Win32_bootconfiguration // system startup configuration
Win32_operatingsystem // operating system information
Win32_startupcommand // the system automatically starts the program.
Win32_service // system-installed Service
Win32_group // System Management Group
Win32_groupuser // system group account
Win32_useraccount // User Account
Win32_process // system process
Win32_thread // system thread
Win32_share // share
Win32_networkclient // installed network client
Win32_networkprotocol // installed network protocol
Brwin32_pagefilesetting // page File Settings

The following is an example: JS uses WMI to obtain computer hardware information.
For example, to obtain the hard disk serial number:
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