I was thinking about making a TSR program in C++. I did some googling but found that most of them are using "dos.h" headers. This is obsolete and its use is frowned upon. So how can I make a simple TSR program in C++ ?
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Assuming you are running Windows, the answer is, you don't. DOS TSRs required low-level access to the BIOS, and hooking an interrupt; they are notoriously badly behaved under Windows, even inside of the cosnole or a DOS box.
Under Windows, then the equivalent of a TSR is simply a program …
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