Windows Installer Error

I have tried to find a way to fix this, but have been unsuccessful.

This happens on various programs, so I know it's just a certain thing that I am trying to install.

This is the error:

This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer Package.

Windows XP Home, SP2.

 

You receive a "This installation package could not be opened" error message when you try to run Office XP Setup
http://support.microsoft.com/kb/290525/

 

What? I don't want Office... It happens with a lot of programs.

 

Try The Resolution

path\Setup.exe /fv version.msi

Path = path of the MSI installer

 

I don't know the version of the .msi though. I tried the second solution, but there is no Installer folder inside of my WINDOWS folder.

 

It's hidden

 

yes it is Hidden

Start > Run > c:\windows\installer

 

Alright, so I deleted the msi, but I am still getting the error.