Class not registered

imagic1

Hi,

We have a 32 bit Windows program (VC++ with MFC) what connect to Oracle Database (9i - 11g R2 [32 bit]) via OLEDB.
We use Oracle provider for it.
With 32 bit Windows + 32 bit Oracle client everything well.
Our 32 bit app. on 64 bit Windows (Vista) + Oracle 64 bit client (11g R2) we have error during connect:
OLEDB error (HRESULT : 0x80040154) : Class not registered

If I find OraOLEDB11.dll and register it, problem become an unhadled exception from CDataSource::OpenFromInitializationString(...) MFC class.
Initialization string like this: 'Provider=OraOLEDB.Oracle;User ID=...;Password=...;Data Source=...'

I can not download OLEDB provider (ODAC) from (error on page):
http://www.oracle.com/technetwork/database/windows/downloads/index-090165.html

Please help me if there is solution.

Regards,
Imre

gdarling - oracle

Hi,

32 bit apps require 32 bit Oracle client software.
Installing 32 bit Oracle client software or recompiling the app as 64 bit should resolve this issue for you.

Hope it helps,
Greg