Opening packages using scheme

Hi,

I need to find out how I can open packages opened using ,open such as 
,open sockets etc. in the program itself.

So a program could be something like

(begin
   (run-shell (,open sockets))
   (run-shell (,open locks))
   (run-shell (,open threads))
   ....
)

Thanks in advance.
-- 
Gautham Anil