Hi, I have played around for about a week without any luck trying to implement getting the fusion version number by using a class.  If I don't use a separate class like the fusion example, I can get it to work.  What is odd is that I can retrieve the mac address using the EXACT same method, and it works without throwing an exception. Most likely the problem is that my knowledge of vb is not that great and I'm just chasing my tail.  I do have some further debugging output though..  I don't know where I am getting WLANConfig.WLANOptions from.. Any help is greatly appreciated. "Invalid usage of Disposed Object" Locals $exception  {Invalid usage of Disposed Object"}  System.Exception this {Symbol.Fusion.Config.WLANConfig.WLANOptions} Symbol.Fusion.Config.WLANConfig.WLANOptions Console Project *************************************************************** Imports System Imports System.Collections Imports System.Data Imports Symbol.Fusion Imports Symbol.Exceptions Imports System.Runtime.InteropServices Public Class classfusionversion     Private myConfig As Config = Nothing     Public Sub New()         'create a reference to Config         myConfig = New Config(FusionAccessType.STATISTICS_MODE)     End Sub     Public ReadOnly Property Fusionversion()         Get             Try                 Dim version As Symbol.Fusion.Version = myConfig.Version                 Return version.Fusion                 myConfig.Dispose()             Catch ex As Exception                 Return "UNKNOWN"             End Try         End Get     End Property     Public Sub dispose()         myConfig.Dispose()     End Sub End Class ************************************************************************************ 'the two imports below are for writing to file Imports System Imports System.IO Module Module1     Sub Main()         Dim DevInfo = New classfusionversion         DevInfo = New classfusionversion         Dim path As String = "\temp\motoinfo.txt"         Dim sw As StreamWriter         ' This text is added only once to the file.         If File.Exists(path) = False Then             ' Create a file to write to.             sw = File.CreateText(path)             sw.WriteLine("Motorola Info")             sw.Flush()             sw.Close()         End If         '' This text is always added, making the file longer over time         '' if it is not deleted.         sw = File.AppendText(path)         sw.WriteLine("FUSION VERSION:" & DevInfo.Fusionversion)         sw.Flush()         sw.Close()         ' Open the file to read from.         Dim sr As StreamReader = File.OpenText(path)         Dim s As String         Do While sr.Peek() >= 0             s = sr.ReadLine()             Console.WriteLine(s)         Loop         sr.Close()     End Sub End Module

jamiec, I haven't taken the time to load your sample on a device (too many other possible variables) but I did see the following when reading your sample code.  Notes are in the code with "

Hi,

After over a week of pulling my hair out, and with help from everyone, I finally got it working .  I want to thank everyone for their time helping out a newb programer as myself.

The resolution was actually pretty simple.  My "return version.fusion" was returning immediately (Thanks David) so the next line to dispose wasn't being called.  I resolved the issue by setting "version.fusion" to a variable and then disposing of myconfig and then returning the variable.  Working code below.

Imports Symbol.Fusion

Public Class class_fusionversion

    Private myConfig As Config = Nothing

    Public ReadOnly Property Fusionversion()

        Get

            Try

                myConfig = New Config(FusionAccessType.STATISTICS_MODE)

                Dim version As Symbol.Fusion.Version = myConfig.Version

                Dim output As String

                output = version.Fusion

                myConfig.Dispose()

                Return output 

            Catch ex As Exception

                Return "UNKNOWN"

            End Try

        End Get

    End Property

End Class

Hi, If I warm boot the device (mc55 wm6.5) and run the sample app, I have no issues.  I can open and close it, no problems.  As soon as I run my application, and then close it(get my error) and then launch the sample app, I get the msg box that "command mode is in use".  This shows me that my app is not disposing of the connection to command mode properly.   Thanks for pointing me in the right direction.. j

Looks like your application is either crashing or not closing/disposing the Fusion object completely.  Please note that only one application can be opened in the Commmand mode at any given time. And also, open Fusion in the Command mode only if necessary.  In the EMDK sample, we first open in Command, create the new sample profiles and close the command mode.  We will then re-open the sample in the session mode for all other operations. - Prashanth Kadur

Could you run the Fusion sample distributed with EMDK and check if you encounter similar issues?