Oracle ODBC driver missing from ODBC Administrator

I have the Oracle 10.0.2 client software on my laptop (running XP SP3) and need to use the native Oracle ODBC client for use on a project (ie not "Microsoft ODBC for Oracle"). I have installed the ODBC driver (downloaded from OTN) and according to the Oracle Installer everything completed OK.

When I try to create a DSN using the driver, it is not listed in the installed drivers list in the ODBC Administrator, even though all the settings in the Registry appear (at first glance) to be OK, and the actual dlls are in the locations the registry says they are.

Does anyone have any suggestions? Intriguingly, the ODBC driver for DB2 (used on another project) appears to be in the same state, although a DSN I set up months ago is evidence that this was once accessible for creating them...
Richard JebbAsked:
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Richard JebbAuthor Commented:
Fixed it myself:

Please see the answers in this link:

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