How can I add a batch file to visual basic and execute by pressing a button?

Not in front of my dev machine but I think the error you will get is file not found.

You have asked your program to execute run.bat but not told it where run.bat is actually stored.

Try this:

Dim path As String
   path = System.IO.Path.GetDirectoryName( _
      System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)
Process.start(path & "\Run.bat")

You may not need the \
The path will be set wherever the exe is ran from, so the batch file will have to be in the same folder. EG: c:\Myprog\Myexe.exe and c:\Myprog\Run.bat

hope below code will help you

//To create a batch file
System.IO.StreamWriter SW = new System.IO.StreamWriter("FileName.bat");
SW.WriteLine("FileContent");
SW.Flush();
SW.Close();
SW.Dispose();
SW = null;

//To Run the batch file use below command
System.Diagnostics.Process.Start("FileName.bat");