OK, so from what I've read, "VOS" was the older name for CTS (Common Type System), not the name of the whole project. The project was named COM+, COM Object Run

OK, so from what I've read, "VOS" was the older name for CTS (Common Type System), not the name of the whole project. The project was named COM+, COM Object Runtime, and Project Lightning at different times. "Ext-VOS" ("extensions to VOS") is a document that primarily proposes generics, which were only added in C# 2.0.