G'day Njoud,

Welcome to the monastery.

Unfortunately, "it doesn't work" doesn't help us much. Try: 

system("glomosim data.in");

[download]

Take a look at the system documentation.

Also, to get a better answer, follow the guidelines in "How do I post a question effectively?".

-- Ken

In reply to Re: system sub routine with windows7 by kcott
in thread system sub routine with windows7 by Njoud

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