Cognos Impromtu 6 and Oracle 10 Client

works!

find the file cogdmor.ini (usually in %ProgramFiles%\Cognos\cer1\bin ) .

Find the section:

[DLL Names]

and Add the line:

OR1002-Win32=ORACLIENT10.DLL,10

(I am using 10.2.0.3 client)