This is completely asinine, you need to read up on your history. Microsoft literally created DirectX in 95 to help developers for software and hardware develop multimedia drivers and applications for windows.

"In late 1994, Microsoft was ready to release Windows 95, its next operating system. An important factor in the value consumers would place on it was the programs that would be able to run on it. Microsoft employee Alex St. John had been in discussions with various game developers asking how likely they would be to bring their MS-DOS games to Windows 95, and found the responses mostly negative; programmers had found that the Windows environment did not provide the necessary features which were available under MS-DOS using BIOS routines or direct hardware access.[6] There were also strong fears of compatibility; a notable case of this was from Disney's Animated Storybook: The Lion King which was based on the WinG programming interface.[7] Due to numerous incompatible graphics drivers from new Compaq computers that were not tested with the WinG interface which came bundled with the game, it crashed so frequently on many desktop systems that parents had flooded Disney's call-in help lines.[8][9]

St. John recognized the resistances for game development under Windows would be a limitation, and recruited two additional engineers, Craig Eisler and Eric Engstrom, to develop a better solution to get more programmers to develop games for Windows. The project was codenamed the Manhattan Project, like the World War II project of the same name, and the idea was to displace the Japanese-developed video game consoles with personal computers running Microsoft's operating system.[8] It had initially used the radiation symbol as its logo but Microsoft asked the team to change the logo.[8] Management did not agree to the project as they were already writing off Windows as a gaming platform, but the three committed towards this project's development.[9] Their rebellious nature led Brad Silverberg, the senior vice president of Microsoft's office products, to name the trio the "Beastie Boys".[10] "

Its also completely foolish to think that the driver engineers from any specific company don't have a corporate support line to contact if they need help with something or a personal contact they could bounce ideas off of.