What's the smallest DirectX installer I can distribute in my Software?

My application uses DirectX 9.0c开发者_JS百科. There are many installers for the end-user run-times, ranging from 400Kb to 100Mb+ and obviously I don't want to bloat my installer file. However, I believe there are potentially legal restrictions which mean I can't just distribute whichever MS installers I might choose.

This is the one I'd ideally like to include, is it the best /correct one?

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I think that program is not redistributable, you have to point people to the website.

There is a microsoft article http://msdn.microsoft.com/en-us/library/ee416805(VS.85).aspx which talks about what the minimum files you need are. And yes, it's pain!