A problem with TSR

[if]

Hello
I have a tsr program (key logger) that must save ASCII code in dl register when any key pressed.i dont know how i do that becuase when i use a dos int my program halt and i dont know there is any bios int for this ? please help me.
this is my code :

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code removed

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[doomsday]

Have you read the forum rules?  Before you posted asking for help with a key-logger would've been better, but now would be good too.

regards,
-Brent

[sluggy]

Writing applications such as keyloggers is forbidden in the forum rules. Next time read them before signing up.