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Error: The dynamic link library OCI.dll could not be found in the specified path

Error Message

When starting an ArcSDE service the following error may occur:

"The dynamic link library OCI.dll could not be found in the specified path."

Cause

OCI.dll is an Oracle library located in \ora81\bin. The exact cause for the error is unknown.

Solution or Workaround

  1. To the PATH environment variable add the location of the ora81\bin folder.
  2. Reboot the computer.
  3. Restart ArcSDE.