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Magician_

Error 997: Overlapped I/O operation is in progress

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For some reason as of this morning I can no longer run .msi (microsoft installation) files.

Double clicking on the msi file results in the "Opens with.." window popping up as if the system does not recognise the msi extension.

A check of the Windows Installer service shows that it is not running and any attempt to start it results in the 997 error occuring.

Any one have any ideas where to start looking to solve this?

Cheers

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Run "msiexec /regserver" from a command line, otherwise run sfc /scannow and then "msiexec /regserver". The MSI engine actually has two processes - one runs as a service, and the other runs under the user account. It's possible that one (or both) of these are no longer loading properly, or .dll's have become corrupt, or registry settings for the service are invalid, etc.

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