I want to simulate the file opening that occurs when you go into mycomputer or windows explorer and double click on a file.  I create rtf files and want to have the default rtf file handler open them from within my program.  (I create a list of files linked to a customer and want operator to have ability to go into my program, select the customer, select the file and have it open in the default rtf file hander. (in my case it is word but could be WordPerfect!)  Is there an api that will help me do this?