Oracle client in not installed or it cannot be loaded. OCIDLL cannot be loaded

How it is possible that after installing Oracle11g Express and instantclient_12_1 that EMS SQL Manager for Oracle cannot load relevant library:

Oracle client in not installed or it cannot be loaded. OCIDLL cannot be loaded.

Solved:

Switching to Oracle11g 32bit and InstantClient 32bit solved the problem. Seems like x64 not supported.

Solution

Their docs say it's a 32 bit app.

32 bit apps can't load or use 64 bit drivers.

Note: If you have a 64-bit version of OS, you might probably have a 64-bit Oracle client. Since SQL Manager for Oracle is a 32-bit program, it cannot work a 64-bit client. In this case you need to install a 32-bit Oracle client.

You can always use Oracle SQL Developer for free if you have Java 8 on your machine. No need for any Oracle Client.