IIRC
Microsoft uses IBM mainframes to run their business and Apache to host their web sites. The attempted to move Hotmail to IIS and failed.
A slight spin on if you can't do, teach.
If you can't run it, sell it.
When they took the Fourth Amendment, I was quiet because I didn't deal drugs.
When they took the Fifth Amendment, I was quiet because I was innocent.
When they took the Second Amendment, I was quiet because I didn't own a gun.
Now they've taken the First Amendment, and I can't say anything about it.