Hello. Bart Oldeman wrote: > INT 21 now just executes the DOS int21 and never reaches > the DOSEMU revectored int21 code. I don't know if it's > safe to transfer to f000:_BL*0x10 for every interrupt. I am thinking about a less intrusive solution. > Maybe you do? OK, I will do (trying right now:) The attached patch is intended to fix the problem. I don't have your test-case for it so I can only guess if it helps or works as expected. A quick test against a couple of DPMI progs shows no regressions. Does this help?