Send the Arguments to the Exe

[sonia.sardana]

Suppose I have two exes WindowsApplication1.exe WindowsApplication2.exe..On the form load of WindowsApplication2.exe,I m calling WindowsApplication1.exe & sending the command line arguements..I copy the WindowsApplication1.exe into the debug folder of WindowsApplication2.exe.

WindowsApplication2.exe

  Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Process.Start(Application.StartupPath & "\" & "WindowsApplication1.exe", "one" & "two")
    End Sub

WindowsApplication1.exe

 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        MsgBox(Command)
    End Sub

On form load of WindowsApplication2.exe,WindowsApplication1.exe is started & arguments are sent.
Now I want to check on form load of WindowsApplication2.exe,I do not want to start WindowsApplication1.exe, i just want to send the arguments to the WindowsApplication1.exe. Is is possible? To send the command line arguments to the ruunning exe.

[Shuja Ali]

You cannot send a command line argument to an already executing EXE. However, what you can do is to use Inter-Process Communication using named pipes. This would be little difficult to understand if you are a beginner. Couple of articles that will help you understand how it is done in .NET can be found here:
http://www.codeproject.com/KB/thread...ipespart1.aspx
http://www.codeproject.com/KB/thread...ipespart2.aspx

Is there anything special that you would want to achieve?

There is one more easier way of doing this using files. From WindowsApplication2, you can create a file with the required messages/commands that you want to send to WindowsApplication1. And in WindowsApplication1, you will use a FileSystemWatcher component to poll the folder where the 2nd application is writing the file. Once the file is created, an event will fire in the FileSystemWatcher that you can handle and read the file and continue with the remaining process that you would want App1 to execute.

[sonia.sardana]

FileSystemWatcher component ??? Plz explain it in more detail with eg

[Shuja Ali]

Read the documentation on MSDN. I am not good at explaining and writing examples. There are hundreds of examples there all over the net and on msdn.

FileSystemWatcher Class
Creating FileSystemWatcher Component Instances
How to: Create FileSystemWatcher Component Instances