I lost my Power Point file association

I tried to open a pps file as I have done in the past. I clicked on
"open" and it says it is going to open power point slide show but I
get an error that says: "C:=Documents and Settings=Compaq_owner\local
settings\temporary internet
Files\Content/IE5\R7WV57YX\ChristtheRedeemerinRio.pps is not a valid
Win32 application"
I went in 'Windows Explorer' and checked 'file type' and the "PPS"
extension is associated with the power point program. I even tried to
change it to the (same) correct program but still clicking on the "pps
attachment" gives the error.
I saved the file to the HD and then did a double left click and I get
the same error. However if I do a right click and tell it to open
with Power Point the file will open and run properly.
So why can't I open my pps file by clicking on it as in the past?
What happened to the file association?

On Sat, 12 Jan 2008 12:26:50 -0800 (PST), JLM wrote in message
<news:c61668da-0ff9-43f3-bb08-4c139df684d1@s8g2000prg.googlegroups.com>:

> I tried to open a pps file as I have done in the past. I clicked on
> "open" and it says it is going to open power point slide show but I
> get an error that says: "C:=Documents and Settings=Compaq_owner\local
> settings\temporary internet
> Files\Content/IE5\R7WV57YX\ChristtheRedeemerinRio.pps is not a valid
> Win32 application"
> I went in 'Windows Explorer' and checked 'file type' and the "PPS"
> extension is associated with the power point program. I even tried to
> change it to the (same) correct program but still clicking on the "pps
> attachment" gives the error.
> I saved the file to the HD and then did a double left click and I get
> the same error. However if I do a right click and tell it to open
> with Power Point the file will open and run properly.
> So why can't I open my pps file by clicking on it as in the past?
> What happened to the file association?

Try "re-registering" PowerPoint.

* Quit PowerPoint if it's running.
* Choose Start, Run
* Type the full path to your Powerpnt.EXE file (surrounded by quotation
marks) followed by /regserver -- usually this will look like
"C:\Program Files\Microsoft Office\Office\Powerpnt.exe" /regserver
* PowerPoint will start and re-register itself, including resetting the
correct file associations

Hint: If you don't know the exact path, click Browse, then navigate to
C:\Program Files\Microsoft Office\Office and look for Powerpnt.exe there;
select it and click Open; the full path is automatically added to the Run
box for you. If you can't find Powerpnt.exe there, use Windows Explorer to
Search for it.

If you have PowerPoint 2000 or later, you can run Detect and Repair instead
of messing with file paths. It takes a bit longer but does a more thorough
job of repairing broken file associations. Start PowerPoint and choose
Help, Detect and Repair from the main menu. Follow the instructions from
there.

Taken from:
http://pptfaq.com/FAQ00355.htm

I have the same problem except with PDF files. I used to have Adobe
Reader 7.0 and installed 8.0 recently. When I open my PDF files now,
it says "C:\....pdf is not a valid win32 application". The document is
not corrupt. I can open the documents by right-clicking on the file
and click "Open with Adobe Reader 8". I checked my Folder Options and
made sure that PDF files are indeed associated with Adobe Reader 8.

I'm fine with opening PDF files by right-clicking them, but just
thought it would be more convenient to just left double-click them.
Any ideas how to solve this?

On Mon, 21 Jan 2008 18:06:16 -0800 (PST), Julie Mao <jmao27@gmail.com>
wrote:

>I have the same problem except with PDF files. I used to have Adobe
>Reader 7.0 and installed 8.0 recently. When I open my PDF files now,
>it says "C:\....pdf is not a valid win32 application". The document is
>not corrupt. I can open the documents by right-clicking on the file
>and click "Open with Adobe Reader 8". I checked my Folder Options and
>made sure that PDF files are indeed associated with Adobe Reader 8.
>
>I'm fine with opening PDF files by right-clicking them, but just
>thought it would be more convenient to just left double-click them.
>Any ideas how to solve this?

I *believe* there have been problems with Adobe reader 8.0 .
( My prog for PDF is Foxitsoftware .)