After installing CA BSI 8.2 on a Oracle 11.2.0.3.0 and you try to login you get this error:
External error, Unable to connect to DB : [Provider cannot be found. It may
not be properly installed. (HR: 0x800a0e7a) (Unknown error 0x800A0E7A)
(Source = ADODB.Connection)] [Thread: 5092] [CDBConnection
pointer:0x1861524][GetConfiguration]
The problem was with the library registration bitness, that must be executed for 32-bit. And it was trying to register in 64-bit mode.
This is the code that must executed:
%systemroot%\SysWoW64\regsvr32.exe oraoledb11.dll
The login screen should now appears correctly