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Activate a Running Application by Name

'Namespace: Microsoft.VisualBasic
'Application Name: ""NOTEPAD.EXE""

AppActivate("Untitled - Notepad")

Activate a Running Application by Process ID

'Assembly: System.dll
'Namespace: System
'Namespace: Microsoft.VisualBasic

'Application Name: ""NOTEPAD.EXE""

Dim processID As Integer
processID = Shell("NOTEPAD.EXE", AppWinStyle.NormalFocus)
AppActivate(processID)

Write a Message to the Application Log

'Assembly: System.dll
'Namespace: System
'Namespace: Microsoft.VisualBasic

'Message: "Critical Error!"

My.Application.Log.WriteEntry("Critical Error")

Stop an Application

'Namespace: Microsoft.VisualBasic
'Namespace: System.Diagnostics
'Application: "Notepad.exe"

For Each proc As Process In Process.GetProcessesByName("Notepad.exe")
	proc.CloseMainWindow()
Next

Read Command Line Arguments

'Namespace: Microsoft.VisualBasic

For Each argument As String In My.Application.CommandLineArgs
	'do something with argument
Next

Make an Asynchronous Method Call

'Namespace: Microsoft.VisualBasic
'Namespace: System.Threading

Private Sub startBackgroundTask()
	' Execute the Background Task
	backgroundWorkerInstance.RunWorkerAsync()
End Sub

Private Sub backgroundWorkerInstance_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles backgroundWorkerInstance.DoWork
	' This method will execute in the background thread created by the BackgroundWorker componet
End Sub

Private Sub backgroundWorkerInstance_RunWorkerCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles backgroundWorkerInstance.RunWorkerCompleted
	' This event fires when the DoWork event completes
End Sub