Pro*C/C++ is available from the Oracle9i Client. The keyword here is CLIENT. Click on 'Oracle9i Database Enterprise/Standard/Personal Edition for Windows NT/2000/XP', accept their license agreement, give your username and password. Download the zipfile listed as 'Oracle9i Database Release 2 Client for Microsoft Windows 98/2000/NT/XP'.

Once you have downloaded the Oracle9i Client, run the installation, but choose the CUSTOM installation. In the program list, look for an item called ORACLE PROGRAMMER; it will need to be reinstalled by the Client installation (note that the Database installation installed ORACLE PROGRAMMER in the previous installation, however it did not include Pro*C/C++, so you need to replace it with the Client version of ORACLE PROGRAMMER). In other words, you need to place a check in the ORACLE PROGRAMMER box, even though it says "Installed." Once that has been completed, run through the remaining installation and Pro*C/C++ should install successfully.

- Thanks to Chris Cleveland for his input