Mail Archives: opendos/2000/12/02/07:45:07
X-Comment-To: Florian Xaver
Hi!
2-δΕΛ-2000 13:05 dos DOT fire AT aon DOT at (Florian Xaver) wrote to <opendos AT delorie DOT com>:
>> Oh, yes. :( I muddle the "preemptive" word with "cooperative". But I
>>mistake only in this: Win 3.x cooperative for "Win3 apps" and preemptive for
>>DOS apps. Win95 cooperative for "Win3 apps" (for compatability reasons)
>>_but_ preemptive for both DOS and "Win95" apps. Yes, Win95 have some jams
>>when both Win3 and Win95 apps call, say, GDI, but this is another history.
FX> Mh... I always thought, that Windows is also for DOS programs cooperative.
"Cooperative" mean subjects of cooperation know about cooperation and
_should_ do some actions to support this. This counted as worsted point in
Win3 design because this is hard to obey when produced many apps by many
vendors - this is why even Win3 native app can so easy to freeze Windows.
But DOS apps designed without cooperation in mind, so preemptiveness for
multitasking DOS apps is required.
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