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(Answer) (Category) FAQ's - APPX Software, Inc. : (Category) APPX Utility : (Category) APPX Runtime Environment : (Category) Runtime Messages :
Message, "Network IO Error"
Possible causes of the Network IO Error:

Most of the time this error is the result of lack of permissions on the Appx directory. Appx users must have full control within the Appx directory and all sub-folders within it. They also need to be able to run the Appx executable on the server with logon local rights.

We have seen this error caused by a spam filter. If any new spam/virus filters been added to your server in the past few months, could you turn them off briefly to test connectivity?

You might get this error if you're running a newer version of the client than the engine. Example, running Appx 4.2.a with the 5.0.1 client.

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2011-Feb-04 9:42am
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