If I recall with CS5, the external app commands were part of a script. So Bridge needs to be aware of photoshop. I am assuming when you upgraded you uninstalled CS5 first then installed CS6. If you did the reverse, it could cause issues when you uninstall CS5, especially with file extension.
If Bridge CS6 is seeing Photoshop CS6 and you don't see the batch command, then perhaps it can not find the script. Or the permission is not high enough for Bridge to alter the config file to include the script.
The above are only suggestions as I do not have CS6 yet and can not verify.
I'm having the reverse problem. CS6 Bridge sees all the stuff under Tools/photoshop:
But CS5 Bridge does not. So looking into it a bit I see the scripts directory here:
c:/Users/harry/AppData/Roaming/Adobe/Bridge CS5\Startup Scripts
Preferences/Startup Scripts shows:
[X] Adobe After effects CS5
[X] Adobe Bridge CS5
[X] Adobe Device Central CS5
[X] Adobe Output Module
And there appears to be no way (In that dialog screen) to add any
There is nothing under the directory:
c:/Users/harry/AppData/Roaming/Adobe/Bridge CS6\Startup Scripts\
and yet CS6 apparently sees scripts somewhere since it has a fair number of entries at Tools/photoshop, including the Batch image processor.
At at Preferences/Startup Scripts there is an extensive list of scripts listed.
Is there a way to make CS5 bridge See the scirpts for Photoshop CS6? Or at least to send a selected bunch of files to PS CS6 Image processor?
My CS5 roaming has one script that I put there. In CS6 I have no scripts there as I have added nothing.
THe startup scripts in preferences are default scripts so applications can talk to one another. It is unlikely you can get different versions to talk to each other.
If you want to send files from CS5 Bridge to CS6 image processor you can contact http://forums.adobe.com/community/bridge/bridge_scripting and see if some one can write a script to do that. I know zero about scripting.
The scripts directory in the ROAMING location is for OPTIONAL scripts you have loaded. If you have no custom scripts loaded you will have nothing there. THe scripts in EDIT/PREFERENCES are default scripts for programs to communicate with each other. Place check mark for programs you have.
You can try resetting prefernces by holding down the ctrl key and starting Bridge. You should get a reset windown with 3 options. Choose all 3.
If that does not bring back the batch and imagae processor image then I suggest you uninstall and reinstall CS6.