Different operating systems have formats of executables, an executable built for one system won't work on another (incompatable) system.

Well, let's say, it won't work without performing tricks. I have used heavily (in house) modified Pascal (!) compilers that generated binaries that ran on both SCO and VMS. It's dirty, it's tricky, but it worked. It can be done. But normally, you really, really don't want to.

In reply to Re^2: how to make exe for all operating systems by Anonymous Monk
in thread how to make exe for all operating systems by veeruch

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