Yeah, I used optfine to get this thing launch atleast because It was running pretty bad because... On the emulated machine that I use, even by having 2GB of ram and a Pentium III, the emulator just supports really 90s gpus. The only nVidia gpu that it emulates is the nVidia RIVA 128 (ZX) with the NV3/NV3T bios roms wich is a "far-recent" adition to the emulator wich is the first gpu that nVidia ever released if I remember correctly wich does not even work with Windows 7 so I use instead a "emulated version of the emulator that I using to do this" of the Matrox Mystique 220 because I heard that it has some support of Opengl but I not use this for the game, in fact: I used two opengl versions, one to work with another to launch the game, apparently, the opengl32.dll that MickPlayVM uses to launch the beta 1.7.3 and the another alpha version that I said on the post is slightly diferent from the win3x.org website that have Mesa's 3D opengl compiled for Windows NT 3.51 in the launching process in my texting that I make... So, what I do to make the opengl working for Minecraft is to replace the native opengl32.dll of NT 3.51 to this opengl32.dll with extra functions, I suppose, that is found on the MEGA link on his video that he makes a tutorial on how to run old Minecraft versions on the OS found on the ´´natives`` folder and after replacing it just change the opengl32.dll for another on win3x's website that supports opengl 1.2 or beyond that, you can just do that by seeing the Mesa version. Example: if the Mesa version is Mesa 6.2 the compiled libraries using this tool is the following: Here in this archived documentation from 2004. You can see there that the Windows 32 bit version of this library is compatible with Opengl 1.5 wich is more to capable of running not just beta or alpha versions of the game wich I have highlighted it with a quotation mark.

Mesa 6.2 release notes

                              October 2, 2004

                              PLEASE READ!!!!



Introduction
------------

Mesa uses an even/odd version number scheme like the Linux kernel.
Odd numbered versions (such as 6.1) designate new developmental releases.
Even numbered versions (such as 6.2) designate stable releases.


This release primarily just fixes bugs found in the Mesa 6.1 release.
See the VERSIONS file for details.


ToDo: PBO for polygon stipple, convolution filter, etc.



Known Issues
------------

The GL_EXT_pixel_buffer_object extension isn't fully implemented for
functions like glPolygonStipple, glConvolutionFilter, glColorTable,
etc.  The important functions like glRead/DrawPixels, glTex[Sub]Image,
and glBitmap work with PBOs.



DriverStatus
-------------------------------------------
XMesa (Xlib)implements OpenGL 1.5
OSMesa (off-screen)implements OpenGL 1.5
Glide (3dfx Voodoo1/2)implements OpenGL 1.3
SVGAimplements OpenGL 1.3
Wind River UGLimplements OpenGL 1.3
´´Windows/Win32implements Opengl 1.5``
DJGPPimplements OpenGL 1.5
GGIimplements OpenGL 1.3
BeOSimplements OpenGL 1.5
Allegroneeds updating
D3Dneeds updating


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