Microsoft Office XP Pro Suite altered by Microsoft Visual.NET Studio

My training is in almost all networking techologies. From time to time I do use Microsoft Office XP Pro and reciently I installed Microsoft's Visual.NET Studio on my computer. I am very interested in learning exactly what happened to "Office" when I installed the developer's studio.

My first clue was that when I save in Word I get a dialog box to the effect that the Macros arn't working. I expect this is so I can write code in Word and past into the Developing Studio. Since I really don't know much about either program I'd appreciate any information I can get.