NT4 and win 9x are not supported anymore by Microsoft. They have limitation affecting PHP code or features. We can't afford to maintain an extra branch only to support museum softwares. windows 2k is 10 years old, don't you think you can update? Or even better, move to 2008 ;)

What new features so necessary? (can you explain?)
But even though so, that why such belongings not to stand in separate expansions, let their use that to whom it is necessary.
Do Not want to argue, but on my, it is impossible named this OS museum only besause so has solved Microsoft.
We independent developers must not go on cause beside Bill Gates.
I disappointed vista and .NET platform. After installing .NET all begin wildly to hold up.
Please give the hope on that us shall not learn the fate someday oppressively to move to Vista.
But if reason as you presently reason this will someday occur. :(

Sorry for my english.

It's quite simple: We don't have the time to care for it, feel free to compile it your self but we won't guarantee anything works there, we prefer spending the time on issues that affect more users instead of wasting the time with platforms which are 12 years old and where no developer has a copy.

I certainly can itself compile, but bad deal to climb in someone else thoughts. But absence to copies can help virtual machine for Virtual PC http://vip-file.com/download/a7e7c9423314/Windows-NT-4.0.rar.html

Thank you.

You don't have to install Vista, windows 2000 or XP work fine.

I have understood You, but that You will say after 10 years?
I am afraid the history be repeated, but then will already write off Windows 2000 and XP.
Many people did not want this.
Please do not go for Microsoft.

I go with the users. We can't limit the builds for 99.99999% of the users because a hand full of people still use NT4 or win 9x. And you can still use php 5.2.x anyway. I think everything has been said now, don't expect another reply from me here :)

Thank you for answers. Offensively only for one that some uncles from Microsoft all for us solve. Why-that I on naivetes thought that this does not spread on Open Source. Excuse me for persistence, simply I fight for soft quality. I wish You good luck!