I beg u to reply me only if u are 100% sure and thorough in the
programming languages and how is the interface,installer of the
software developed,where to find them
But seriously, there is no best language for anything. There are a lot of factors involved. You need to give more details like what the software is meant to do, which languages you know, whether performance is extremely critical, how much time is available to develop and maintain the software, etc.