setting an asp or .vbs to run randomly

Is there anyway to set a vbs or asp file to run randomly.
Say a random 6 times per hour?

Some possibly related links (but I really don't think they address the random part):

Automating Tasks with WSH by Mark Lidstone - 10/13/1999
http://www.4guysfromrolla.com/webtech/101399-1.shtml

How do I schedule ASP files?
http://www.aspfaq.com/show.asp?id=2143

http://www.devdex.com/asp/message.asp?p=577&r=4264507