Camera Raw installation

I have LR3 installed with Camera Raw.
I have just purchased CS5.

Should I install the Camera Raw with the CS5?
Will having Camera Raw installed more than one location on my harddrive be an issue?

Will both programs see and be able to use one Camera Raw program?

Thanks for the help
Pierre

CS5 comes with the Camera Raw plug-in built in. It is separate from Lightroom. Lightroom uses the same "engine" as Camera Raw, but it is not the same software. The two will share the Camera Raw "cache", though. You should go to the Preferences for that cache and enlarge it, either in Lightroom or, after you've installed CS5 in the Camera Raw Preferences gotten to via Bridge.

The two programs can operate smoothly side by side, although you need to "share" Raw processes between Lightroom and CS5/Bridge/Camera Raw. In Lightroom you will need to perform a "Write Metadata to File" operation to have LR save a "xmp" file with the editing info so that Bridge and Camera Raw can pick it up. Then, if you do development on a Raw file in Camera Raw, you will perform the reverse -- "Read Metadata from file" -- to incorporate that into Lightroom. If you don't know those operations, search for them in Lightroom Help.

After you install Photoshop, be sure to perform the update utility. For Camera Raw do this using the Bridge/Updates function. This would ensure that Camera Raw matches the Lightroom stuff. Of course, you will hopefully have done this with Lightroom, if not, do it now, and do it with the Photoshop editor as well!

Tony
Thanks again for your help.
I am reading Camera Raw by Jeff Schewe. He states the Camera Raw version in both CS5 and LR3 are identical in every aspect.

I will take your advice and perform the functions you mentioned when I install CS5. I have been using LR3 since version 2.

Well, good! And, the book by Jeff Schewe is definitely a good resource -- it's been a standard for a long time, and as noted can be used for Lightroom as well in the Develop module. Jeff is also active in the Adobe User Forum (at least he was when I was hanging out in the Lightroom section a few years ago).

Of course there are several excellent books on Lightroom by Victoria Bampton, Scott Kelby and Martin Evening -- I would strongly recommend one or more of them finding a place in the library and the hands of any Lightroom user because there is a whole lot of ground to be covered besides the Develop module. And, Lightroom Help should be a very active document on people's desktop...!