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I found some code using the mutex object. &nbsp;However, it also includes &quot;process.getcurent process().processname&quot;. &nbsp;I've read about the mutex object, but need some &quot;basic&quot; help with it if this is the route I should take. &nbsp;Any more ideas out there? &nbsp;Thanks!!
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I found some code using the mutex object.  However, it also includes "process.getcurent process().processname".  I've read about the mutex object, but need some "basic" help with it if this is the route I should take.  Any more ideas out there?  Thanks!!

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How about the assisted answer in this:<br />
<br />
<a href="https://www.experts-exchange.com/questions/22523305/How-to-stop-application-running-more-than-once.html" rel="ugc">https://www.experts-exchange.com/questions/22523305/How-to-stop-application-running-more-than-once.html</a>
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How about the assisted answer in this:

https://www.experts-exchange.com/questions/22523305/How-to-stop-application-running-more-than-once.html [https://www.experts-exchange.com/questions/22523305/How-to-stop-application-running-more-than-once.html]

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I found the info on the mutex object anf incorporated it in the code which appears to be working.
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I found the info on the mutex object anf incorporated it in the code which appears to be working.

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The following code (included in the program I'm attempting to upgrade) runs fine on xp, but not on Vista.<br />
<br />
Public Sub CheckForExistingInstance()<wbr /><br />
&nbsp; &nbsp; &nbsp; &nbsp; Try<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; If System.Diagnostics.Process<wbr />.GetProces<wbr />sesByName(<wbr />Process.Ge<wbr />tCurrentPr<wbr />ocess.Proc<wbr />essName).L<wbr />ength &gt;&nbsp;1 Then<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ActivatePreviousInstance(g<wbr />sBWBackupT<wbr />itle)<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; End<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; End If<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; Catch<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; MessageBox.Show(Err.Number<wbr />, Err.Description)<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;End Try<br />
&nbsp; &nbsp; End Sub<br />
<br />
The error I get is - the error number = 5 and the description is &quot;couldn't get process information from remote machine..&quot;<br />
<br />
any ideas?<br />
<br />
Thanks!
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The following code (included in the program I'm attempting to upgrade) runs fine on xp, but not on Vista.

Public Sub CheckForExistingInstance()
        Try
            If System.Diagnostics.Process.GetProcessesByName(Process.GetCurrentProcess.ProcessName).Length > 1 Then
                ActivatePreviousInstance(gsBWBackupTitle)

                End
            End If

        Catch
            MessageBox.Show(Err.Number, Err.Description)
           End Try
    End Sub

The error I get is - the error number = 5 and the description is "couldn't get process information from remote machine.."

any ideas?

Thanks!

code works on xp but not on vista

Visual Basic .NET (VB.NET) is an object-oriented programming language implemented on the .NET framework, but also supported on other platforms such as Mono and Silverlight. Microsoft launched VB.NET as the successor to the Visual Basic language. Though it is similar in syntax to  Visual Basic pre-2002, it is not the same technology,

Visual Basic.NET

Windows Vista is an operating system created by Microsoft as the successor to Windows XP. It was intended for PCs, workstations and laptops, and shares the same code base as its successor, Windows 7. New features included an updated graphical user interface (GUI) and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display subsystems, and new multimedia tools. Vista aimed to increase the level of communication between machines on a home network, using peer-to-peer technology to simplify sharing files and media between computers and devices. Windows Vista included version 3.0 of the .NET Framework, allowing software developers to write applications without traditional Windows APIs.