CS4: 32 or 64 Bit? How do I know?

Question

I've been testing CS4 on Win7 Ultimate 64 bit. I open files from Bridge, and I expect that they are opening in 64 bit. But I have come to realize that I cannot be sure. AFAIK, they do.
Today, I went exploring: How to use the 32 bit version. As expected, I found it in the x86 file. I set up the shortcut wondering "How can I tell"? and I see the icon is subtly different in name. But now, the big question: Which is the default setting in Bridge (I am 99% sure it's the 64 bit version ) but if I want to open in 32 bit from Bridge, how do I do it? I have never been asked "Which version?" or similar when opening from Bridge. Nor is there any indicator when Photoshop opens which version, at least not obvious to me.

Answer 1

That's been my workaround to this point. It just seems pretty clumsy so I thought I would ask.
If you generate a shortcut to both, they do have a different labels so it is possible to set up the program to set the program or OS to allow a choice while in Bridge.
Perhaps it is moot. I found one program that will not operate fully in x86, and that is the Epson scanner 3200.It has an update for Win7 but only supplies the WIA scanning feature, woefully inadequate.
So it's either another $500 for a scanner that does or dual boot with XP is going to have to be the order of the day for a while.
In fact, I am actually using a 30 day trial for both Win7 RTM and CS4 (I found out how to do Win7 w/o actually buying it). I have to say that while I really like working with Win7, it is less so with CS4. The only feature so far that really shows an improvement in performance is the Panorama stitcher: 208 sec in CS3, 73 sec in CS4. After that, so long as I am not in scratch, filters take almost exactly the same time in CS3 on XP and CS4 or 3 in Win7.XP is maybe 10% faster on one test, run several times in all configurations (3.9 sec in XP, 4+sec in Win7) which correlates loosely to a finding I found doing comparisons with data base processing.
Finally, Win7 has a peculiarity. If you hide the taskbar , which is immensely preferable running Photoshop( it is obnoxious!) then Windows freezes upon wakening. At least, that's what I found as the culprit on the Internet, have yet to try it.
So, at the end of 30 days I either spend $350 on two software updates, or re-install everything every 30 days or abandon  Win 7 for the time being. If I really don't like to use CS4, the answer is obvious.
Actually, not just $350 but $850 including the scanner.
Message was edited by: Hudechrome