JSI Tip 0946. Outlook9x requires Add & Read (RWX) permission on %SystemRoot%\System32 folder.

If you receive the following non-delivery report (NDR) when sending internet mail with outlook9x,
it is because Outlook9x can't write to the %SystemRoot%\System32 folder:

No transport provider was available for delivery to this recipient. The service is installed but doesn't show up in Tools/Check for new mail on...

Outlook9x must write a MSINxxxx.RHC file, the first time it sends internet mail, where xxxx is a different number for each user.

The default permission on the %SystemRoot%\System32 folder is Everyone Read (RX). You must set it to Everyone Add & Read (RWX), but uncheck Replace permissions on Subdirectories and Replace permissions on existing files.

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