I've just installed the oracle instant client 220.127.116.11.0 on a windows 7 machine. when i execute the file odbc_install the returned prompt is "Oracle ODBC Driver is installed successfully.". then when i go to system -> administration -> data sources (odbc) i can't see no oracle odbc driver. what wrong?
Great you have figured it out finally. Just thought you should know that there is a bug in 11gR2 client and because of that Oracle driver version is shown as 18.104.22.168 instead of 22.214.171.124. This can be confusing 6 months or a year later down the road if you wanted to go back and upgrade your client to, let's say' 12g. To fix this, there is a patch available from Oracle metalink, patch id is p11731183 for 32bit and p11731184 for 64bit windows. This bug is mentioned in 1308617.1