Error 1931: the windows installer service cannot update the system file c:\winnt\system32\olepro32.dll

Legacy KB ID: 3368

Question

When i am installing QuickPOS or QuickPOS Administrator i get the following error:

'error 1931: the windows installer service cannot update the system file c:\winnt\system32\olepro32.dll because the file is protected by windows, you may need to update your operating system for this program to work correctly.'

Answer

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