Hi, Was anybody able to use the (open-process) command in Gambit4beta14 on the MinGW platform? Here is an example: ---------------- (define p (open-process (list path: "C:/msys/1.0/bin/ls.exe" arguments: (list "/") stderr-redirection: #t pseudo-terminal: #t ))) *** ERROR IN (stdin)@1.11 -- Can't convert result from C nonnull-pointer (open-process '(path: "C:/msys/1.0/bin/ls.exe" arguments: ("/") stderr-redirection: #t p...) --------------- It works well on MacOSX. I need a multiplatform way of calling a process with IO ports access. open-process should be the way but it seems to be broken in that version. Thank you, Francois Magnan