I have switched over to the 64bit Windows 7 and created a simple web app to test the connection to the database. I am using VS 2010 - plain asp.net web project and I am runn
Please let me repeat what Stephen said since I missed it the first time myself. The TNS_ADMIN environment variable and ORACLE_HOME is set to C:\instantclient_11_2 and th tnsnames.ora file is in there. Found the answer on this link.