If there is no listing of the "Progress OpenEdge 11.3 Driver" in the 32-bit ODBC Data Source Administrator (this tool is typically found in c:\windows\syswow64\odbcad32.exe) then it will be necessary to verify the driver files have been intalled and create the entries for the driver in the Windows registry.
1) The files that are part of the ODBC driver interface should be located in the <OpenEdge Installation Directory>\bin32.
The file names are:
2) The following can be used to create an odbc_32-bit_install.reg file this presumes the installation was made into c:\Progress\OpenEdge.
Adjust the references to the directory as necessary. Wherever double slash marks are listed, maintain that syntax so that Windows will enter the paths correcty in the registy (the first slash is treated as an escape sequence character so the second slash is not modified by regedit):
Windows Registry Editor Version 5.00
"Progress OpenEdge 11.3 Driver"="Installed"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ODBC\ODBCINST.INI\Progress OpenEdge 11.3 Driver]
Notice the key points to the Wow6432Node - this registry hive allows 32 bit applications to live alongside 64 bit applications. Adding the keys here ensures that the previously created ODBC keys in the 64 bit space will not be overwritten
3) Import the 32 Bit ODBC Registry Key
Double click on the odbc_32-bit_install.reg file, and follow the prompts so it will be imported correctly.
4) Confirm the driver is set up correctly
Run the 32-bit ODBC administrator (%windir%\SysWOW64\odbcad32.exe).
5) Click on the add button. Scroll down if necessary to verify that the Progress OpenEdge 11.3 ODBC driver is now visible in the list.