We can solve 'OraOLEDB.Oracle.1' provider is not registered on the local machine issue by just registering it using below command in VS console:
regsvr32 %ORACLE_HOME%\BIN\OraOLEDB10.dll
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peng huPosted Feb 16, 2011, 12:13 PM
thanks for the help. I also solved this in oracle 11g: using the command like: %ORACLE_HOME%\BIN>regsvr32 OraOLEDB11.dll the OraFAQ's solution about the folder permission is incorrect in my case.
Mahesh ChandPosted Mar 7, 2009, 11:52 AM
You can submit all errors and their solutions to Error Zone section as an article. Here is Error Zone link.