DRI Areas to Explore
From Exhibit 198 of Digital Research (by then Caldera) vs. Microsoft anti-trust trial (which ended up with Microsoft paying to shut it down without coming to a verdict):
"246. On September 30, 1991, Cole put the question explicitly to Silverberg and Barrett as to how and where Windows 3.1 would be designed intentionally incompatible with DR DOS:
"It's pretty clear we need to make sure Windows 3.1 only runs on top of MS DOS or an OEM version of it. I checked with legal, and they are working up some text we are suppose to display if someone tries to setup or run Windows on a alien operating system. We are suppose to give the user the option of continuing after the warning. However, we should surely crash at some point shortly later.
Remark from Seattle P-I: "Several mentioned intentionally crippling the software. They had a logic bomb so the Windows 3.1 beta would crash with DR-DOS. Calling Microsoft would say they didn't test compatibility, but it was encrypted and very specifically tailored. In the series they also discuss making Lotus crash after a few minutes running under Windows so they could tell people to move to the much more reliable MS Office."
"246. On September 30, 1991, Cole put the question explicitly to Silverberg and Barrett as to how and where Windows 3.1 would be designed intentionally incompatible with DR DOS:
"It's pretty clear we need to make sure Windows 3.1 only runs on top of MS DOS or an OEM version of it. I checked with legal, and they are working up some text we are suppose to display if someone tries to setup or run Windows on a alien operating system. We are suppose to give the user the option of continuing after the warning. However, we should surely crash at some point shortly later.
Remark from Seattle P-I: "Several mentioned intentionally crippling the software. They had a logic bomb so the Windows 3.1 beta would crash with DR-DOS. Calling Microsoft would say they didn't test compatibility, but it was encrypted and very specifically tailored. In the series they also discuss making Lotus crash after a few minutes running under Windows so they could tell people to move to the much more reliable MS Office."