When I select target platform = 64-bit windows, the DOA-icons disables in the componentpalette, and my application cannot compile.
Everything is fine in 32-bit.

I first installed an evaluation copy of DOA, but got a message saying that 64-bit is only available in the registered version.
Therefore I uninstalled the evaluation copy (using Windows controlpanel/uninstall a program), and installed the registered version, provided my registration key, and the installation went smoothly.
But I can still not use the components in 64-bit.
I can see the components placed in:
C:\Program Files (x86)\Embarcadero\RAD Studio\9.0\DOA\Win64

I am running in Windows 7 64-bit and a trial version of RAD Studio XE2.

What to do now?

Is C:\Program Files (x86)\Embarcadero\RAD Studio\9.0\DOA\Win64 in the Delphi 64 bit library path? Can you compile other 64 bit applications correctly?

I did add the ...\Win64 path to the Search Path for 64-bit platform without effect yesterday.

But - today I can compile and use my application in both 64- and 32-bit.
However, I still have problems with the component palette.

When I create a brand new form, the IDE sstart with Win32-platform. I can see the Oracle components and place them on the form.
If I then add and select the 64-bit platform, the Oracle Icons in the component palette grayes immediately, one at a time when I click on them.
Very odd!

I know this looks very much as an IDE-problem - or maybe my lack of understanding the new profile-system.

But maybe you can pinpoint the problem anyway?

This does indeed seem like erratic IDE behavior, but we'll look into it.

For your information
the directory:
C:\Users\Public\Documents\RAD Studio\9.0\Bpl\Win64
is empty.

I have tried to copy the contents of
C:\Users\Public\Documents\RAD Studio\9.0\Bpl, but it didn't help.