WMi script in VB

I am using Visual Studio 2008. I want to put a wmi script inside a Vb code.

For example, following the example from link
http://msdn.microsoft.com/en-us/library/aa390387%28VS.85%29.aspx ,  I have my code as follows:

 Dim strComputer, objReg, strKeyPath, subkey, arrSubKeys()         
  
         Const HKEY_LOCAL_MACHINE = &H80000002 
         strComputer = "." 
         objReg = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & strComputer & "\root\default:StdRegProv") 
         strKeyPath = "SOFTWARE\XYZ Installs" 
         objReg.EnumKey(HKEY_LOCAL_MACHINE, strKeyPath, arrSubKeys) 
          
         For Each subkey In arrSubKeys 
             ListBox1.Items.Add(subkey.ToString)           
         Next 
  
  
 I get the following exception in the line highlighted in red above.  
 InvalidCastException: Conversion from type 'DBNull' to type 'Object()' is not valid. 
  
 But when this code is executed separately in command line as a wmi script, it works fine. I am not sure if the issue is with declarations.  
  
 Any help is highly appreciated!

One of the problems I found is, I tried to list all the folders inside "SOFTWARE" and "XYZ Installs" is not getting listed. I opened the registry editor and found "XYZ Installs" inside "SOFTWARE" though.

Are you writing this in VB.NET?

Why on earth would you want to run VBscript code from a VB application?

If you want to know the VB.NET equivalent post something in the "Other Programming Languages" forum.  There are some .NET coders on here, myself included, who can probably help you out

This forum is vbscript only
In theory we know nothing about Visual Studio
 

Well, no one really answered the question.  As several member eluded, you don't want to use vbScript code in a .NET application, you should be utilizing .NET to elminate unnecessary code and ensure that the application is working efficiently.  If you do a web search for "VB.NET WMI code generator", you should be able to find a code generator to get you started, or just doing a search for "VB.NET WMI StdRegProv" will provide other forums like this:  http://www.netframeworkdev.com/net-base-class-library/stdregprov--wmi-code-generator-4074.shtml