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Cannot Start Reports Server. Engine trace rwEng.trc Shows "Fail to Load RW.DLL" (Doc ID 557280.1)

Last updated on APRIL 26, 2023

Applies to:

Oracle Reports Developer - Version and later
Microsoft Windows x64 (64-bit)


Even after setting the PATH, ORACLE_HOME and REPORTS_TMP variables, you are unable to start the Reports Server on Windows.  You get error window "Fail to load rw.dll".

Also, the engine trace, for example rwEng-0.trc, will have

Error 55006 (EngineImpl:loadLibrary): Fail to load rw.dll..

If the parameters minEngine and initEngine are set to zero in <repserver_name>.conf file (located in %ORACLE_HOME%\reports\conf), then the Reports Server is able to startup, but as soon as a report is executed, it generates "Error 55006 (EngineImpl:loadLibrary): Fail to load rw.dll."




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