VB.NET EXE - Registry key access - No Visual Studio IDE - Framework 2.0 - getting object null reference exception

This could be a Code Access Security (CAS) issue...  Are you running the application from a network share (where the exe resides on another server other than the one you're running it from).

If so, we can give you some tricks to modify the CAS settings.

Hi,
Thanks for your response.

When I tried with OpenSubKey ,I got Object regerence null exception.
So I changed My code to as below.I this coud be CAS settings issue.Plese suggest me how to proceed?

'Dim regKey As RegistryKey
        'regKey = Registry.CurrentUser.OpenSubKey("SOFTWARE\Test", True)
        'If (regKey Is Nothing) Then
        '    regKey = Registry.CurrentUser.CreateSubKey("SOFTWARE\Test", True)
        'End If
regKey.SetValue("CompanyName", txtComapnyName.Text)

Then I got the error as below


See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentException: The specified RegistryKeyPermissionCheck value is invalid.
Parameter name: mode
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource, ExceptionArgument argument)
   at Microsoft.Win32.RegistryKey.ValidateKeyMode(RegistryKeyPermissionCheck mode)
   at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey, RegistryKeyPermissionCheck permissionCheck, RegistrySecurity registrySecurity)
   at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey, RegistryKeyPermissionCheck permissionCheck)
   at BobCost.frmRegistration.btnNext_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at ComponentFactory.Krypton.Toolkit.KryptonButton.OnClick(EventArgs e)
   at ComponentFactory.Krypton.Toolkit.KryptonButton.b(Object A_0, MouseEventArgs A_1)
   at ComponentFactory.Krypton.Toolkit.ButtonController.OnClick(MouseEventArgs e)
   at ComponentFactory.Krypton.Toolkit.ButtonController.MouseUp(Control c, Point pt, MouseButtons button)
   at ComponentFactory.Krypton.Toolkit.ViewBase.MouseUp(Point pt, MouseButtons button)
   at ComponentFactory.Krypton.Toolkit.ViewBase.MouseUp(Point pt, MouseButtons button)
   at ComponentFactory.Krypton.Toolkit.ViewBase.MouseUp(Point pt, MouseButtons button)
   at ComponentFactory.Krypton.Toolkit.ViewManager.MouseUp(MouseEventArgs e, Point rawPt)
   at ComponentFactory.Krypton.Toolkit.VisualControl.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3082 (QFE.050727-3000)
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
SetUp
    Assembly Version: 12.0.0.127
    Win32 Version: 12.0.0.127
    CodeBase: file:///D:/BOBCOSTCD%20on%20odc9/SetUp.exe
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 8.0.0.0
    Win32 Version: 8.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Runtime.Remoting
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Runtime.Remoting/2.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
----------------------------------------
ComponentFactory.Krypton.Toolkit
    Assembly Version: 2.6.1.0
    Win32 Version: 2.6.1.0
    CodeBase: file:///D:/BOBCOSTCD%20on%20odc9/ComponentFactory.Krypton.Toolkit.DLL
----------------------------------------
System.Management
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Management/2.0.0.0__b03f5f7f11d50a3a/System.Management.dll
----------------------------------------
System.Configuration
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.3082 (QFE.050727-3000)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Well, let's start with a bit of code clean up...

Also, are you running this application from a network shared folder?

   regSubKey =  Registry.CurrentUser.CreateSubKey("MyProgram")
   If Not IsNothing(regSubkey) then
      regSubKey.SetValue("MyValue", "VeryGoodSetting")
   else
      MessageBox.Show("Could not create subkey")
   end if

                                              

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No I copied the Exe to local Folder and i tried,Even then i am facing the same issue?
But when i logged with user having admin rights its working fine.