I bought OS/2 for work to run on some DEC PC (not the damn Rainbow, the decent 486 DEC sold). The graphic card (S3) wasn't supported out of the box, so I called the IBM and got nowhere other than an acknowledgement it existed.

I called DEC and they too believed it existed, so they (while I was still on the line) called their contact at IBM. After being transferred twice, we arrived at the person who could mail me the driver, but I would have to sign an NDA. Myself and the DEC rep explained we didn't want source or a beta driver, just the release one. He insisted every customer had to sign. I said I'd think about it. After hanging up, the DEC rep couldn't stop laughing. He asked if I wanted a free copy of NT compliments of DEC. I took it and it had the correct driver.

I tried, but they had no chance.