The "PeopleSoft Open Query ODBC driver"
is delivered with PeopleTools. Starting with PT8.50, this driver is installed by running PS_HOME\bin\client\winx86\psodbccrinst.exe, which spools a log to %TEMP%\psodbccrinst.log
The psodbccrinst.log shows the files and registry updates involved.
After installing, when you open the ODBC administrator, you'll see 'PeopleSoft PeopleTools' driver for your PeopleTools release.