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OpenEdge 12 Explorer fails with Error - HTTP Status 404 - Not Found

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TitleOpenEdge 12 Explorer fails with Error - HTTP Status 404 - Not Found
URL NameOpenEdge-12-Explorer-fails-with-Error-HTTP-Status-404-Not-Found
Article Number000197306
EnvironmentProduct: OpenEdge
Version: 12.x
OS: Windows
Other: OEM, OpenEdge Management, Fathom
Question/Problem Description

OpenEdge Explorer fails to display the login screen.

Cannot start Fathom due to error 404.

Restarting OpenEdge explorer using %OEM%\bin\tcman start, does not have any effect. 

The command %OEM%\bin\tcman plist shows the PASOE instance is running.

The %OEM%\work\cachedb\*.* and %OEM%\work\configdb\*.* files are corrupt.

Deleting the %OEM%\work\cachedb\*.* files does not resolve the problem.

Deleting the %OEM%\work\configdb\*.* files does not resolve the problem.

Process Monitor shows the antivirus accessing %OEM%\work files during OpenEdge startup.

Steps to ReproduceStart an Internet browser using this URL: http://localhost:9090
Clarifying Information
The Windows' DEP (Data Execution Prevention) is set for just Windows processes and services.

The user that start OpenEdge Explorer is Administrator.

The %OEM% folders have the correct permissions.

Test environment using a copy of  %OEM% folder works when cachedb\*.*  and configdb\*.* files are deleted.

Test environment does not have the antivirus checking the OEpenEdge Explorer files.
Error MessageHTTP Status 404 - Not Found
Defect Number
Enhancement Number
Cause
Antivirus software is checking OpenEdge Explorer's files during startup, this causes the %OEM%\work\cachedb\*.* and %OEM%\work\configdb\*.* to get corrupted.
 
Resolution
To fix this problem do the following:

1) Stop the OpenEdge Explorer from proenv using %OEM%\bin\tcman stop

2)  Configure the antivirus to skip scanning the %OEM% folder

3) Delete the %OEM%\work\cachedb\*.* files

4) Delete the %OEM%\work\configdb\*.* files

5) Start the OpenEdge Explorer using %OEM%\bin\tcman start

 
Workaround
Notes
Keyword Phrase
Last Modified Date6/3/2021 1:25 PM
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