I need to determine from a program what version of Oracle is installed in each of the Oracle Homes on a server. As there may not be any databases created in the Home yet, I need to be able to do this outside of the database (i.e., without connecting to the database). Also, it would be highly preferable to be able to do this from a remote program.
This is from a windows program running .Net (C#, if that matters).
I am currently reading remote registry keys (using this technique: https://stackoverflow.com/questions/1566547/how-to-read-remote-registry-keys), to find all of the Oracle Homes according to this method. This works fine, however, I have looked around those keys and do not see any information on the exact version/release.
The name of an Oracle Home itself is of course 1) not a reliable indicator and 2) does not have the exact version/release (for instance "10.2.0.4.0"). Basically I am looking for a way to figure out what the Oracle Universal Installer tells you in the Installed Products button.
I should clarify, all of the Servers will be running Windows 2003-2008.