MDAC 2.5 SDK - ODBC Driver for Oracle
To determine the Oracle components installed on your system (and their versions), navigate to the \Orainst directory under the Oracle home directory. Open one of the following text files: Nt.rgs, Win95.rgs, or Win98.rgs.
The file format is similar to the following:
0 ntinstall all "orainst" "3.3.1.0.0C" "Oracle Installer"
20 w32tcp80 adp80 "tcp80" "8.0.5.0.0" "Oracle TCP/IP Pro"
23 w32nmp80 adp80 "nmp80" "8.0.5.0.0" "Oracle Named Pipe"
26 w32util80 all "util80" "8.0.5.0.0" "Oracle8 Utilities"
34 w32rsf80 all "rsf80" "8.0.5.0.0" "Required Support"
47 w32netclt80 net80 "netc80" "8.0.5.0.0" "Oracle Net8 Client"
69 w32plus80 all "plus80" "8.0.5.0.0" "SQL*Plus"
The .rgs files also include installation information and descriptions of each component.