If you receive the error message "Server Execution Failed" when starting an Enabler client application (POS etc):
![Server Execution failed error message ENBSES~1: Server Execution Failed [OK]](/images/ServerExecutionFailed.png)
(Or the equivalent in your language)
This indicates that the pump server was not able to start due to a fundamental problem such as:
- Enabler device driver not installed properly
- Missing or faulty Enabler PCI card
The title "ENBSES~1" is short for "ENBSESSIONX", the name of the Enabler ActiveX session control.
This error may also be shown as "An unknown error has occurred with the pump server", depending on software version:
![Unknown pump server error message Enabler Demonstration Application: An unknown error has occurred with the pump server [OK]](/images/UnknownPsrvrError.png)
You can examine the Windows Event Log, Application section for more information:
