You may receive an error message when you try to install or run a program or try to install an update on a Windows Vista-based computer

Source: Microsoft Support

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You try to install or run a program, or try to install an update on a Windows Vista-based computer.

You may receive one of the following error messages:

• 
  
  Program too big to fit in memory
• 
  
  ProgramName is not a valid Win32 application

This issue may occur if the program or download is corrupted.

To resolve this issue, reinstall the program, or download the update or installation file again.

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