How do I remove Service Pack 4?

I recently attempted to install a wireless DSL router. The install was
unsuccessful, and ever since then, I cannot launch any of my applications by
double-clicking their launch icon. I get a message that says something like,
"Quicken.exe is not a valid Win32 application." The only way I can launch is
to right click the icon, select properties, and select "Run as different
user." I want to reinstall Windows 2000 Professional, but when I try I get an
error message saying Service Pack 3 can't be installed over newer versions. I
originally installed Windows 2000 with SP3, and have since upgraded to SP4.
Any help would be most appreciated.

"SilverLakeLaptop" <> wrote in
message news:FB0EE922-F0A6-4E44-A84F-...
>I recently attempted to install a wireless DSL router. The install was
> unsuccessful, and ever since then, I cannot launch any of my applications
> by
> double-clicking their launch icon. I get a message that says something
> like,
> "Quicken.exe is not a valid Win32 application." The only way I can launch
> is
> to right click the icon, select properties, and select "Run as different
> user." I want to reinstall Windows 2000 Professional, but when I try I get
> an
> error message saying Service Pack 3 can't be installed over newer
> versions. I
> originally installed Windows 2000 with SP3, and have since upgraded to
> SP4.
> Any help would be most appreciated.

Use another PC with a CD writer to slipstream SP4 and make a Windows 2000 CD
which includes SP4 ??

--

Brian Gregory. (In the UK)

To email me remove the letter vee.

Hi;

Look in the .\WINNT folder (or possibly .\Windows) for a subfolder named
"$NTServicePackUninstall$"

Within that folder will be another named "SPUninst" and that folder will
have a file named "spuninst.exe." Run that file to uninstall SP4.
Probably best if you do that after booting into Safe Mode.

--

....Sky

Tom "Sky" King
=============


SilverLakeLaptop wrote:
> I recently attempted to install a wireless DSL router. The install was
> unsuccessful, and ever since then, I cannot launch any of my
> applications by double-clicking their launch icon. I get a message
> that says something like, "Quicken.exe is not a valid Win32
> application." The only way I can launch is to right click the icon,
> select properties, and select "Run as different user." I want to
> reinstall Windows 2000 Professional, but when I try I get an error
> message saying Service Pack 3 can't be installed over newer versions.
> I originally installed Windows 2000 with SP3, and have since upgraded
> to SP4. Any help would be most appreciated.