OS: Windows 2008 Server R2
Oracle Client: 11.2
Many Thanks
None of the links above about lib and lib32 folder worked for me with Oracle Client 11.2.0 But I found this on the OTN community:
As far as inspecting a client install to try to tell if it's 32 bit or 64 bit, you can check the registry, a 32 bit home will be located in HKLM>Software>WOW6432Node>Oracle, whereas a 64 bit home will be in HKLM>Software>Oracle.