I don’t think that’s the case.
I think you’ve misunderstood ZbuffeR.
He meant creating a framebuffer object and attaching a simple texture to it as color attachment (a texture with no multisampling). That should work no matter the user enables FSAA at the graphics adapter settings.
Yes, using FBOs. That way it should work no matter what FSAA setting is configured for the default framebuffer by the graphics adapter settings. That’s what ZbuffeR suggested as well.
We have noticed that disabling GL_MULTISAMPLE on our ATI GPUs helps removing antialiasing during selection even if it is activated on the Windows graphics adapter settings, will this be true also on all the other GPU/drivers?