Oracle 9i Client is a legacy product and is not natively supported on modern operating systems like Windows 10 64-bit. Official downloads for this version are generally no longer available on the Oracle Software Download Center.
: Oracle 9i has reached its "End of Life" (EOL). Official downloads are generally removed from public Oracle Technology Network (OTN) pages, though they may still be accessible via the Oracle Software Delivery Cloud if you have a valid commercial license. OS Support
To provide the exact installation steps or configuration, could you tell me: Are you trying to connect to a 9.0.1 or 9.2.0 database? Oracle 9i Client Download For Windows 10 64-bit
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Configuring Oracle 9i Client on Windows 10 64-bit Oracle 9i Client is a legacy product and
But the deepest irony is yet to come: the "64-bit" paradox. The client itself is 32-bit. It installs into C:\Oracle\Ora9i and adds its ancient bin folder to the PATH. When the legacy VB6 app finally tries to connect via SQL*Net, the operating system shudders. The Windows 10 64-bit OS, in its wisdom, redirects registry calls and file system accesses, creating a silent hall of mirrors. The connection fails with the legendary error: ORA-12154: TNS:could not resolve the connect identifier specified. This is the dragon the archaeologist must slay—a beast born from mismatched architecture, misaligned environment variables, and the ghost of a 2001 network naming service.
Download from: Oracle Instant Client Downloads (Free, legal) Official downloads are generally removed from public Oracle
However, you can successfully connect to an Oracle 9i database from Windows 10 by using a newer, compatible client or specific workarounds. Recommended: Use a Compatible Higher Client
Oracle 9i Client Download for Windows 10 64-bit: Installation & Compatibility Guide