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Detecting that a program is already running Messages   Related Types This message was discovered on microsoft.public.dotnet.general. Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions. Post a new message to this list... Joecx Hi Does anyone have the code or maybe give me a start on how to detect if my program is already running if someone tries to run it again while it's already running? I know I could do this with a dummy file by putting something in the file while it's running and emptying the file when it's not running, but I was hoping for something a little more professional. Has anyone done this yet? Joe Reply to this message...        Raghavendra T V Hi Joe, You can try this code ' Imports System.Diagnostics. Dim p As Process For Each p In Process.GetProcesses lstProcesses.Items.Add(p) Next you get a list of process running in the machine may be you can check your program in the list of process and if its there then its running else not ! Hope this helps you Thanks Raghavendra "Joecx" <Click here to reveal e-mail address> wrote in message news:Click here to reveal e-mail address... [Original message clipped] Reply to this message...        ToddT in the past, i have used the win32 findwindow api to do this. i wonder if there is a .net solution... On Thu, 26 Aug 2004 19:52:05 +0530, "Raghavendra T V" <Click here to reveal e-mail address> wrote: [Original message clipped] Reply to this message...        Jon Skeet [C# MVP] (VIP) Joecx <Click here to reveal e-mail address> wrote: [Original message clipped] See http://www.pobox.com/~skeet/csharp/faq#one.applications.instance -- Jon Skeet - <Click here to reveal e-mail address> http://www.pobox.com/~skeet If replying to the group, please do not mail me too Reply to this message...        The Devil In VB6 I used: http://internettrash.com/users/fdb/already.htm If App.PrevInstance = True Then MsgBox("The program is already running!") End End If Maybe there's an equivalent in c# Jon Skeet [C# MVP] wrote: [Original message clipped] -- incognito http://kentpsychedelic.blogspot.com new material added 9/5 Reply to this message...        The Devil Ok, wait. I guess this guy has the answer: http://www.dotnetspider.com/Technology/KBPages/631.aspx 7> Now Paste the following snippet right after the Main functions starts before the existing line. Process aProcess = Process.GetCurrentProcess(); string aProcName = aProcess.ProcessName; if (Process.GetProcessesByName(aProcName).Length > 1) { MessageBox.Show("The application is already running!!","Test",MessageBoxButtons.OK,MessageBoxIcon.Stop); Application.ExitThread(); } The Devil wrote: [Original message clipped] -- incognito http://kentpsychedelic.blogspot.com new material added 9/5 Reply to this message...        Jon Skeet [C# MVP] (VIP) The Devil <Click here to reveal e-mail address> wrote: [Original message clipped] That's not a terribly *good* answer though - it fails if anyone happens to use the same process name. I gave you a link to a better answer in my previous post though. -- Jon Skeet - <Click here to reveal e-mail address> http://www.pobox.com/~skeet If replying to the group, please do not mail me too Reply to this message...     System.Diagnostics.Process System.Windows.Forms.Application System.Windows.Forms.MessageBox System.Windows.Forms.MessageBoxButtons System.Windows.Forms.MessageBoxIcon Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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