calling programs

Hi there,

how can I call an other program in the currently running program using the spawn ... family of functions ?

I've tried calling a program called checksum which takes three char* args like this:

spawnl (P_WAIT, checksum arg1,arg2,arg3,NULL);


arg1 and arg3 are both filenames;arg1 is a file present in the working directory and arg3 is a file to be created by checksum.
arg2 is a simple char* switch.
Checksum.exe also exists in the same directory.

I can't get it to work ...

Can you help ?

Thanks,

bigSteve

Read the manual - spawnl args start at arg0, not arg1

spawnl (P_WAIT, checksum, checksum,arg1,arg2,arg3,NULL);