They claimed that they completely rewrote Office for the O2007 product. However, the all-new product still used the same APIs and not .NET, a fact that left many developers wondering why Microsoft was pushing .NET so hard when they don’t use it themselves on their flagship product.
“However, the all-new product still used the same APIs and not .NET, a fact that left many developers wondering why Microsoft was pushing .NET so hard when they don’t use it themselves on their flagship product.”
O2007 is heavily integrated with .NET. Just like Apple, they will develop APIs custom for their major projects.
I’m pretty sure Visual Studio is not used for Office, either.