For some reason I can no longer open pps attachments in my Outlook
Express e-mails.  I know this is used by a power point program, which
I never use except for opening attachments.  But even when I went into
settings, control panel and folder options and reset it to power
point, it only takes me to a page like Word and asks if I want to
create a power point presentation.  What's going on here?  But, better
yet, can you please help me find a solution to this problem?

You said you only use powerpoint for opening attachments.  Have you
tried saving the PPS file to the desktop, and then double clicking it?
 How about saving it to the desktop, opening powerpoint, and then
doing file->open and choosing the file?

Trying these may give some insight into whether Outlook Express is
having a problem, Windows is having a problem, or powerpoint is having
a problem.

As u said u changed the file type this issue would have been solved by
then if the file extension had changed i would like to know a simple
thing that it is only the power point presentation that is not opening
or other attachments as well. If so i request u to open outlook
express go to tools options under options security uncheck Warn me
when other applications try to send mail as me and DO not allow
attachments to be saved or opened that could potentially be a virus

Outlook Express > Tools > Options > Security
Uncheck
Warn me when other applications try to send mail as me 
DO not allow attachments to be saved or opened that could potentially be a virus

This usually happens when u update outlook express 

or

as u have stated before u have changed the file type in folder options
i would like u to check the settings
Control Panel > Folder Options > File Types Select pps the details
Should be as Opens with Microsoft Office Power Point & if u Click
Advanced u get a dialog box as EDIT File Type under which their is
open select it and click edit u would get a editing Action Type dialog
box check the path in Application used to perform action it should be
pointing to the installed "POWERPNT.EXE" with a string /s "%1"

ie:  "C:\Program Files\Microsoft Office\OFFICE11\POWERPNT.EXE" /s "%1"

please check u Microsoft Office installed path and follow and click ok

and check the option conform open after download 

or u could save the PPS file to the desktop, and then double clicking it to open 
or opening PowerPoint, and then
File > Open > Browse the file

Try these and let me know

It's unlikely to be the Outlook Express Security setting because they
are able to open the attachment, it just opens in the wrong program.

Try downloading this viewer to open PPS attachments:

http://www.microsoft.com/downloads/details.aspx?FamilyID=7C404E8E-5513-46C4-AA4F-058A84A37DF1&displaylang=EN

Ok thanks feldersoft-ga for reminding me as i was not aware of that.

maryklo-ga i could sujusset u on more thing

After installing Windows XP Service Pack 2, when you open a .PPS file
that came as a mail attachment in Outlook Express, you may see the
Open / Cancel dialog box. When you select Open, the following error
may be displayed:

This file does not have a program associated with it for performing
this action. Create an association in the Folder Options control panel

Whereas the same file opens fine when saved to disk, and then viewed.
This happens if the Open verb is missing for that ProgID.
(PowerPointViewer.SlideShow.11 is the ProgID, if you have the
PowerPoint Viewer 2003 installed )

Ff this is the problem u r facing 
 
To fix the problem manually

Note: The following solution applies if you have PowerPoint Viewer 2003 installed.

To resolve the problem, use any of these methods:

Method 1:  Rename the Show verb to Open

    * Start Regedit.exe and navigate to:

    [HKEY_CLASSES_ROOT\PowerPointViewer.SlideShow.11\shell]

    There will be two sub-keys by default (namely Show and Print)

    * Select the sub-key named Show, and rename it to Open

    * Quit Regedit.exe

Method 2:  Create a new action named Open

    * Start Regedit.exe and navigate to:

    [HKEY_CLASSES_ROOT\PowerPointViewer.SlideShow.11\shell]

    * Create a new key named Open
    * Under Open, create a sub-key named Command
    * Select Command, and in the right-pane, double-click (default)
    * Assign the following value-data for (default)

    C:\Program Files\Microsoft Office\PowerPoint Viewer\pptview.exe "%1"

    * Quit Regedit
Hope this solves the problem

Could you not provide that registry entry in a reg file ready for import?

I suspect that the wrong parameters are being passed to the executable also.
However the fact that word is opening suggests it may even be pointing
to the wrong executable, it was my understanding they all used
seperate executables.

you can provide an registry entry in a reg file ready for import but
it is better to navigate to the string and specify the details as u
could miss some things in typing

You don't have to type it.  Just find the key, and export it to a file.

Here you go.

Unable to open .PPS attachments directly from Outlook Express?: 
http://windowsxp.mvps.org/ppsopen.htm

Copyright © 2006 Ramesh Srinivasan. All rights reserved.