Question & Answer
Question
On Windows systems, how do I figure out which ODBC driver is installed (32-bit or 64-bit)?
Answer
On Windows 32-bit systems, the ODBC driver is 32-bit if the nsqlodbc.dll file is located in the C:\WINDOWS\system32 directory.
On Windows 64-bit systems, if the nsqlodbc.dll file is located in:
| Directory | Installed driver |
| C:\WINDOWS\syswow64 | 32-bit ODBC |
| C:\WINDOWS\system32 | 64-bit ODBC |
Both 32-bit and 64-bit programs can run on 64-bit Windows OS. To support the 32-bit program on a 64-bit machine, Windows uses WOW64 technology so that every 32-bit program goes into the WINDOWS\sysWOW64 directory. Alternatively, Windows treats system32 as the native directory, so every 64-bit program on a 64-bit OS (require 64-bit machine) goes into WINDOWS\system32.
Related Information
[{"Product":{"code":"SSULQD","label":"IBM PureData System"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":null,"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.0.0","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Historical Number
NZ980448
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Document Information
Modified date:
17 October 2019
UID
swg21575155