If several different WinCC OA versions are installed on the same
computer, the COM manager is registered for the version last installed. If the Excel report
of another version than the last installed should be started, the COM manager for the right
version must be registered. If, for example, the version 3.20 was installed and the Excel
report of the version 3.19 should be opened, it cannot be opened.
Register the COM-Manager for the
version 3.18 by opening the command line as an administrator and by executing the
following command: C:\Windows\SysWOW64\regsvr32.exe
C:\Siemens\Automation\WinCC_OA\3.18\bin\windows\WCCOAcom.dll
When WinCC OA Excel Report runs, the COM Manager (the manager
starts automatically) is shown in the panel Event Manager Connections as ASCII Manager. You
can open the Event Manager Connections-Panel via System Management > Diagnostics > EventMan. Connections:
Figure 1. Event Manager Connections
For more information, see chapter WinCC OA
Diagnostics.
