Simple question about DirectX 8 installation

Hi,
I decided to post this question here, since it is most of a general issue rather than an specifically DirectX question.
I have Visual Basic 6 installed (full installation) and I am planning to install the DirectX 8.1 SDK (full installation too). I do not want that any of the DirectX stuff "merges", or "updates" any portion of my Visual Basic 6, including my installed MSDN. I suppose that the DirectX SDK installs in a different folder and has nothing to do with the VB6 or MSDN already installed, since I think that there are only external libraries that I had to link or reference every time that I want to program DirectX stuff. Is this is correct?
Thank you for any help.

Actually you only Reference DirectX with VB therefore you installation package will only install either DX7VB.dll for DirectX 7.0 or DX8VB.dll or DirectX 8.0 and 9.0.

Thats DirectX 7 for Visual Basic Type Library and DirectX 8 for Visual Basic Type Library. It will say DirectX 8 even if you have DirectX 9 installed. ;)