This is the entire DirectX 7.0a SDK install cd compressed using 7-zip (link). You’ll thank me for making you install that compression application, as it cut the size of the compressed file by 30 MB.
It is no longer available from Microsoft’s websites at all, but still remains valid technology.
Microsoft no longer supports the DirectX 7.0a SDK… however it all works well and requires little support.
The DirectX 7.0a SDK is incredibly powerful, but normally only works with Visual C++ and Visual Basic, not with Borland C++ Builder.
If you would like to experience the magic of RAD DirectX 7.0a for Borland C++ Builder, you will also need to download the TDx_Library.
Why you would use the DirectX 7.0a SDK without the TDx_Library is beyond us, it’s too hard, and RAD DirectX just makes it all pathetically easy…
EDIT 5.1.2012: I reuploaded the files in ZIP format since my host (m6.net – which isn’t the best but they’re cheap) over wrote my MIME settings for the 7z file format. Now you get larger file sizes but a more widely supported format.