The modification of the interrupt service routine entry address is always valid?

星光月寂

Write a program, rewrite the entry address of an interrupt service routine, and transfer to another piece of code.The entry address of the original interrupt service routine is not restored in the code.

but:
   When the program finishes running, exit debug; enter debug again and find that the address of the interrupt service program is still the original address, and it is not repaired after X is changed.

Question: How can I make this change permanent?

星光月寂

One by one
The above question should be related to the memory residency problem! ?

How can I make my program still valid after running, so that the interrupt service routine will be executed from the new entry address
!!

Thank you for your enlightenment! Anxious, wait!

www_james

It should be debug the protective recovery of some system critical interrupts. If you run the program directly, except for int22h / 23h / 24h, other interrupts can be permanently modified. These three dos vectors are not modified by the current program itself Use, should be restored after dos program