Oracle MA failed connection start Error Code 0x80230804

I got the same error in the below when importing Oracle MA by MIIS.

http://social.technet.microsoft.com/Forums/en-US/d3409d13-a064-4186-b6b4-c62741927c54/oracle-ma-failed-connection-start-error-code-0x80230804

I tried to replace OracleDB from 10g to 11g.(I know it is not supported.)

I was prompted to refresh schema and refreshed schema and did Full import , Full synchronization and it worked fine.

But I tried to import Oracle MA again it says failed connection start Error Code 0x80230804.

Which folder do I need to grant the MIIS service account to change right permission ? I tested to grant oracle 10g client folder but it did not work. 

Do I need to restart MIIS service ?

I confimed that I could login and select data from table in Oracle11gDB using sqlplus with Oracle MA access acount.