As our (32-bit) application uses the Oracle client for communication with the Oracle server I have set up a test environment on a Microsoft Windows Server 2019 Datacenter. I have installed the Oracle DB 19c (22.214.171.124 64-bit) and the appropriate Oracle client (126.96.36.199 32-bit).
As soon as I start TNSPING or SQLPLUS out of the installation directory of the Oracle client, the Windows error message "The application was unable to start correctly (0xc000007b). Click OK to close the application." occurs.
I have searched the internet for remedy and tried all the 'restart Windows' and 'reinstall framework' hints without success. The hint "64-bit software on 32-bit Windows doesn't work." simply doesn't apply to my problem.
Is there anybody out there who has further ideas - perhaps ideas more close to the Oracle world.
Thanks in advance, Ben