List the Codec Files on a Computer_javascript技巧

Description

Uses WMI to return information about all the audio and video codec files installed on a computer. Script Code

Copy code The code is as follows:

var wbemFlagReturnImmediately = 0x10; 
var wbemFlagForwardOnly = 0x20; 

   var objWMIService = GetObject("winmgmts:\\\\.\\root\\CIMV2"); 
   var colItems = objWMIService.ExecQuery("SELECT * FROM Win32_CodecFile", "WQL", 
                                          wbemFlagReturnImmediately | wbemFlagForwardOnly); 

   var enumItems = new Enumerator(colItems); 
   for (; !enumItems.atEnd(); enumItems.moveNext()) { 
      var objItem = enumItems.item(); 

      WScript.Echo("Access Mask: " + objItem.AccessMask); 
      WScript.Echo("Archive: " + objItem.Archive); 
      WScript.Echo("Caption: " + objItem.Caption); 
      WScript.Echo("Compressed: " + objItem.Compressed); 
      WScript.Echo("Compression Method: " + objItem.CompressionMethod); 
      WScript.Echo("Creation Class Name: " + objItem.CreationClassName); 
      WScript.Echo("Creation Date: " + objItem.CreationDate); 
      WScript.Echo("CS Creation Class Name: " + objItem.CSCreationClassName); 
      WScript.Echo("CS Name: " + objItem.CSName); 
      WScript.Echo("Description: " + objItem.Description); 
      WScript.Echo("Drive: " + objItem.Drive); 
      WScript.Echo("Eight Dot Three File Name: " + objItem.EightDotThreeFileName); 
      WScript.Echo("Encrypted: " + objItem.Encrypted); 
      WScript.Echo("Encryption Method: " + objItem.EncryptionMethod); 
      WScript.Echo("Extension: " + objItem.Extension); 
      WScript.Echo("File Name: " + objItem.FileName); 
      WScript.Echo("File Size: " + objItem.FileSize); 
      WScript.Echo("File Type: " + objItem.FileType); 
      WScript.Echo("FS Creation Class Name: " + objItem.FSCreationClassName); 
      WScript.Echo("FS Name: " + objItem.FSName); 
      WScript.Echo("Group: " + objItem.Group); 
      WScript.Echo("Hidden: " + objItem.Hidden); 
      WScript.Echo("Install Date: " + objItem.InstallDate); 
      WScript.Echo("In Use Count: " + objItem.InUseCount); 
      WScript.Echo("Last Accessed: " + objItem.LastAccessed); 
      WScript.Echo("Last Modified: " + objItem.LastModified); 
      WScript.Echo("Manufacturer: " + objItem.Manufacturer); 
      WScript.Echo("Name: " + objItem.Name); 
      WScript.Echo("Path: " + objItem.Path); 
      WScript.Echo("Readable: " + objItem.Readable); 
      WScript.Echo("Status: " + objItem.Status); 
      WScript.Echo("System: " + objItem.System); 
      WScript.Echo("Version: " + objItem.Version); 
      WScript.Echo("Writeable: " + objItem.Writeable); 
      WScript.Echo(); 
   }