Unhandled exception in WyUpdate

Hi - my app launches wyUpdate.exe (which runs if newer version found) and has all files getting updated correctly. WyUpdate.exe is the current (2.6.18.4 from 2012) release.

During the update process, users get 3 prompts and a .NET error occurs between 2nd and 3rd. Properties are set to use .NET 4. The prompts are:

Prompt 1 - Close Processes... (no problem here)Prompt 2 - Files in Use... (it would be nice to suppress this if Prompt 1 is confirmed)Error Message - Microsoft .NET Framework (see below for details)Prompt 3 Update Successful (if I clicking continue on error msg)

Here is the full Error Message and I have screen capture if needed:

Unhandled exception has occurred in your application. If you click Continue......Cannot access a disposed object.Object name: 'List Box'.

Details:

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

************** Exception Text **************System.ObjectDisposedException: Cannot access a disposed object.Object name: 'ListBox'. at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Control.get_Handle() at System.Windows.Forms.Control.CreateGraphicsInternal() at System.Windows.Forms.ListBox.UpdateMaxItemWidth(Object item, Boolean removing) at System.Windows.Forms.ListBox.ObjectCollection.ClearInternal() <b>at wyUpdate.frmFilesInUse.UpdateList()</b> 🤔

************** Loaded Assemblies **************mscorlib Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18444 built by: FX451RTMGDR CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll----------------------------------------wyUpdate Assembly Version: 2.6.18.4 Win32 Version: 2.6.18.4 CodeBase: file:///[Path to our app]/wyUpdate.exe----------------------------------------System.Windows.Forms Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18408 built by: FX451RTMGREL CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll----------------------------------------System.Drawing Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18408 built by: FX451RTMGREL CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll----------------------------------------System Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18408 built by: FX451RTMGREL CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll----------------------------------------System.Configuration Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18408 built by: FX451RTMGREL CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll----------------------------------------System.Xml Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.34234 built by: FX452RTMGDR CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll----------------------------------------System.ServiceProcess Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18408 built by: FX451RTMGREL CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.ServiceProcess/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.ServiceProcess.dll----------------------------------------

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

For example:

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

When JIT debugging is enabled, any unhandled exceptionwill be sent to the JIT debugger registered on the computerrather than be handled by this dialog box.

So.. anything suggestions?