tnsping with no parameters seems to work good. ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Storey, Robert (DCSO) Sent: Tuesday, June 28, 2011 2:19 PM To: oracle-l-freelists Subject: Client determination What is the quickest way to determine what version of a client is installed on a given machine? Is starting SQLPLUS the only method? I have to verify client versions to ensure connectivity to a new 11gR2 database. Clients are 9.2, but not sure if they are 18.104.22.168 Trolling MOS while awaiting a response. This e-mail, including attachments, may include confidential and/or proprietary information, and may be used only by the person or entity to which it is addressed. If the reader of this e-mail is not the intended recipient or his or her authorized agent, the reader is hereby notified that any dissemination, distribution or copying of this e-mail is prohibited. If you have received this e-mail in error, please notify the sender by replying to this message and delete this e-mail immediately.