“Win Installer 3.1 not valid win32 application”

Hello,

I am just a user without technical knowledge.

When I attempt to install the MSFT exe file to update my Windows Installer I get an error msg “update.exe is not a valid win 32 application.”

I have no idea what it means or how to fix it so I’m hoping some knowledgeable person can help.

Win XP Pro, tons of ram and HDD.

Thanks