Windows Installer is a service that runs when called on. If it doesn't
start then the service may not be configured correctly.

What Service Pack level is your XP at ? Also if you visit the website
http://www.update.microsoft.com
are you using the latest version ? If not you'll see an offer to use the
latest version. You should follow the screen prompts to use it. One
of it's requirements is an update to Windows Installer 3.1 which may
help with your other issues.

"blueff" <blueff@discussions.microsoft.com> wrote in message
news:A62A5784-9119-4A47-894D-3F0662A1C8FF@microsoft.com...
> When I try to download Skype, update ITunes and instaill the Windows
> Installer Cleanup Utility I get an error message saying the Windows
> Installer
> is not accessible. I have tried the support suggestions from Microsoft and
> have had no success. What can I do to download programs on Windows?