Completely Daft Question

I have written and applicaiton in VB (yuck but that's what the client wants) and part of the application involves importing and processing text files. For that I turned to php;-) for all its processing power as a shell script. Now here is the daft question. How would I go about embedding the php_dll in my vb application and use it to process a script ??? if its even possible !!!! pete