I use also photoshop cs, and it works correctly and allows to open file image also; but not with cs2.
What's the problem?
You might want to open Event Viewer and take a look at both the System and the Applications tabs. What errors are you encountering? Unfortunately a lot of the error messages are very cryptic, but click on any Windows link in them, to see if they point you to something in the MS Knowledgebase.
You might also want to post your system specs and your OS setup.
Also, what happens if you drag one of these files from Windows Explorer to an open PS?
Good luck,
Hunt
Mylenium
Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1041
Date: 22/03/2009
Time: 09:05:52
User: NT AUTHORITY\SYSTEM
Computer: PENTA
Description:
Windows cannot query DllName registry entry for
{CF7639F3-ABA2-41DB-97F2-81E2C5DBFC5D} and it will not be loaded. This is most likely caused by a faulty registration.
For more information, see Help and Support Center at
<http://go.microsoft.com/fwlink/events.asp>.
I also googled this and found out that people with IE8 beta installs had this issue a lot too.