Thank you for providing my input with the appropriate nomenclature.
(English being a second language coupled with no programming skills sometimes require outside help.)
Let me apologise for mistakenly assuming you were confusing DX Libraries with "just" DX as the discussion seemed to revolve around DX Library versions when you brought up the "just" DX versions and which version of Windows they were released for (as for instance DX8.1 was released for W95 as well though it originally came out with DX1.0). W2k3 Server came with DX9.0, not 8.1, btw.
/Tiny Version History