I am writing a small app in VB and I would like to know how I would set it up so that when a user pressed a button, a sechduled task is ran. Keep in mind that this task is already created, I just need it to run.
Use the System.Diagnostics.Process class. You can create a process and run it with Process.Start() method.
EDIT: Following code sample starts the helloworld.exe. This is just to give an idea about the Process class. You can find this example in Process.Start Method
How about using the recently added System.Threading.Tasks library?