Forget ACDSee and use Photoshop Bridge instead. You will get "better" colors, if you set your camera to sRGB. If you have a good reason to use AdobeRGB, than create a Photoshop action, were you assign the AdobeRGB profile to the camera-JPEG's. If you go Raw - what's recommended, if you have needs for Adobe RGB - you can choose AdobeRGB in the ACR dialog for the output file.
Thanks for your advice.
In fact I prefer Adobe RGB since I print some of my pictures.
I also developped a few PS macros to convert profiles, mainly to export my pictures to my web gallery.
However, I don't want to open save my hundred of pictures in PS and save them so that an ICC profile is embedded : PS will uncompress and recompress the JPEG image, so there's going to be a loss in IQ.