Identify If A Process Is Running

does anyone know of a way to check if a process is running on the server... using asp ? I basically have an html form and upon submittal of the form ... i would like to redirect to the response page when a certain process is no longer running . the logic is as follows Code:

1) user enters form values and clicks submit button
2) server side asp checks the server for a process "wpuba.exe"
3) if "wpuba.exe" is not running .. redirect to page2.asp

basically I want to wait for the "wpuba.exe" process to terminate before redirecting to the response page.