[mmastrac]

> Windows XP/7's video modesetting logic is a bit mysterious. It may try to set a incompatible mode using int10h, which will cause flickering or even black screen after transferring control to the legacy OS.

I would really love to know more about this.

I assume it's this VGA driver:

https://github.com/tongzx/nt5src/tree/master/Source/XPSP1/NT...

[p_ing]

> https://github.com/tongzx/nt5src/blob/master/Source/XPSP1/NT...

> It is based on the SpiderSTREAMS source, stremul\msgsrvr.c.

There's some special history.

[skissane]

I’d love to know if any apps ever actually used the STREAMS support in Windows NT 3/4; I’ve never seen any

[LeFantome]

It is kind of amazing that Microsoft hosts leaked Windows source code on their own website.

Could this be seen a distribution by Microsoft? I mean, if you can sue Pirate Bay for the content they host...

[ronsor]

Wow, Microsoft open-sourced Windows XP?

[mmastrac]

... uhh, not really. :)

[skissane]

Microsoft owns GitHub, and GitHub is crawling with Windows source code leaks… and I’m wondering it anyone at Microsoft really cares? Is it possible they’ve even made an intentional decision just to ignore it?

If it were an Oracle source code leak, I expect they’d have a crack team of lawyers suing people 24x7 until it was all gone… maybe that’s why there haven’t (to my knowledge) been any Oracle source code leaks (I vaguely remember one of Solaris, but that wasn’t such a clearcut case since IIRC it was mostly previously open sourced code)

Well, it wouldn’t surprise me if some unfriendly intelligence agency somewhere had succeeded in stealing some of it, but if they have, they are unlikely to release it publicly

[AStonesThrow]

When I started college in 1989, my Pascal programming class used a cluster of AT&T 3B2 systems running SVR3. I poked around those systems like crazy over the course of two quarters. I don't remember if there was any significant source code exposed to unprivileged users.

During the mid-90s, the Unix Wars were raging and Unix System Labs was suing U.C. Berkeley over the intellectual property of Unix source code. Unix had been written at AT&T Bell Labs, but Berkeley had licensed and forked their own, based on improved networking code, and by this time it was ready to run on i386 systems. In fact, USL had borrowed back some BSD code, allegedly without crediting them. Berkeley had been busy removing AT&T code and replacing it, so they could relicense BSD Unix.

USL, part of AT&T (but later purchased by Novell), contended that Berkeley could not easily make a "clean room implementation" of any kernel code or device drivers, if those programmers had read or worked with original AT&T source code. They told the courts (and journalists) that the programmers might be tempted to reproduce proprietary Unix code, consciously or subconsciously, and therefore, these programmers were permanently "Mentally Contaminated" and Berkeley should not be allowed to continue distributing BSD [BSDi] Unix.

https://en.wikipedia.org/wiki/UNIX_System_Laboratories,_Inc.....

So when I attended Usenix LISA in 1994, this 3-year lawsuit was at a fever pitch, and someone on the convention floor had manufactured large buttons for attendees to wear, proudly proclaiming "MENTALLY CONTAMINATED", and all the admins and systems programmers had a good laugh about the absurdity of trying to keep a lid on proprietary source code by policing everyone who's ever seen one of its files.

[joshuaissac]

This type of restriction is still applied to contributors to the ReactOS project, in that contributions are not accepted from those who have seen any leaked Windows source code or have worked for Microsoft.

[userbinator]

From those who claim to, to be precise.

[jsheard]

> Microsoft owns GitHub, and GitHub is crawling with Windows source code leaks… and I’m wondering it anyone at Microsoft really cares?

Even weirder is that GitHub hosts all of the tools for activating (i.e. cracking) modern versions of Windows and Office as well. Microsoft really doesn't care.

[adiabatichottub]

Why should they? They have bulk licensing deals with PC OEMs and large organizations. They've already got the big money. J. Random Hacker building a PC isn't even a rounding error to them.

[michaelmrose]

Quite right in fact limited weak copyright protection helps retain marketshare that might be lost otherwise especially when that weak protection in fact costs little real revenue.

[userbinator]

Also, they still get the ad revenue and telemetry if you pirate Windows and otherwise leave it stock.

...of which the tools to disable that invasiveness are also on GitHub, so maybe they just care more about maintaining marketshare.

[FuriouslyAdrift]

Microsoft's current business is its cloud services, not Windows. Windows is just an onramp to their SaaS subscriptions.

[rzzzt]

MS offers (or offered back in the day of Win2000 and XP) access to source code for governments, system integrators and academic institutions as part of its Shared Source Initiative:

- https://en.wikipedia.org/wiki/Shared_Source_Initiative#Overv...

- https://news.microsoft.com/source/2002/02/21/microsoft-annou...

[skissane]

And it is pretty clear that’s where most or all of these leaks actually came from, not from within Microsoft. e.g. the NT4 and 2000 leaks apparently came from Mainsoft

I don’t know the current status of those source code access programs but I believe at least some of them are still in effect. IIRC, to stop the Chinese government from dumping Windows, they had to give them source code access, but I believe they are planning to dump it anyway, they see relying on US proprietary software for their government operations as too big a risk

[kevinsync]

The little bit I perused is very readable code.. like enjoyable to read. There are a lot of stylistic decisions that always felt "right" to me (general spacing, commenting style, horizontal alignment of equals signs, etc) -- but FWIW the first codebase I ever read (and probably imprinted on me indelibly) was DikuMUD, which is kind of in the same ballpark.

Anyways, very cool to see.

[bitwize]

I... wouldn't confess to having perused illegally leaked Windows source, as it could taint you and make you ineligible to contribute to certain projects, like Wine.

[Kwpolska]

That's Wine's problem, not mine.

[arccy]

if you read it but didn't confess, you'd still be ineligible, you'd be harming rather than helping wine if you did sneak in contributions.

[stewarts]

What percentage of people reading HN do you think are actively contributing to WINE source? I'm going to go out on a limb and claim less than a tenth of a percent. And that, to me, is probably 10-100x too high of a threshold.