How to execute multiple specific executables from VB.Net Core

Question

Hi,

Say I have 3 specific executables named: SWAT_123.exe, SWAT_456.exe, and SWAT_789.exe.

I want to call a subroutine in my module with following workflow:

RunCommand(SWAT_123.exe)  'run this in parallel
    When done,

RunCommand(SWAT_456.exe)  'run this in parallel
    When done,

RunCommand(SWAT_789.exe)  'run this in parallel
    When done

Close command prompt window
Exit application

I was trying to check when one process is done, but I have no way of knowing the current process by name or id because the process name returned is always "cmd" for all three processes.

Is there a way to do this in VB.Net?

Appreciate any help.

Answer 1

Hi @deskcheck1-0579 ,
You can start the process and check when it exits by using Process Class.
The following code displays the exit time and exit code at the end of each executable file by raising Process.Exited event.

    Sub Main()  
        Dim myProcess1 As Process = Process.Start("SWAT_123.exe")  
        myProcess1.EnableRaisingEvents = True  
        AddHandler myProcess1.Exited, AddressOf ProcessExited  
        Dim myProcess2 As Process = Process.Start("SWAT_456.exe")  
        myProcess2.EnableRaisingEvents = True  
        AddHandler myProcess2.Exited, AddressOf ProcessExited  
        Dim myProcess3 As Process = Process.Start("SWAT_789.exe")  
        myProcess3.EnableRaisingEvents = True  
        AddHandler myProcess3.Exited, AddressOf ProcessExited  
        Console.ReadKey()  
    End Sub  
    Friend Sub ProcessExited(ByVal sender As Object, ByVal e As System.EventArgs)  
        Dim myProcess As Process = DirectCast(sender, Process)  
        MsgBox("The process " & myProcess.StartInfo.FileName & " exited at: " & myProcess.ExitTime & "." & System.Environment.NewLine & "Exit Code: " & myProcess.ExitCode)  
        myProcess.Close()  
End Sub  

Hope the code above could be helpful.
Best Regards.
Jiachen Li

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