No, generally it will not. 64-bit applications cannot load 32-bit DLLs. To connect, you must use a 32-bit version of your application or find a 64-bit client (which, as mentioned, doesn't exist for 9i). The solution is to use the 64-bit Oracle Instant Client, which is fully compatible and can connect to 9i.
Oracle 9i was released in 2001 and is now over two decades old. It is classified by Oracle as "Extended Support" expired (typically ended in 2006-2009). This article is intended for legacy system maintenance, educational purposes, or access to historical data. For production environments, upgrading to a modern Oracle Database (19c or 21c/23c) is highly recommended. Oracle 9i Client Download For Windows 10 64-bit
Create a tnsnames.ora file in the same folder to define your 9i database connection. Part 3: Essential Fixes for Windows 10 64-bit No, generally it will not
