Product:
Cognos Controller 8.5
Microsoft Excel 2003

Symptom:
Error message in Cognos controller when you start Excel, by click on Excel icon or run data entry.

Error:
IBM Cognos 8 Controller Link
CoCreateInstance(ControllerXLDisp.MsgPusher) failed with 0x80131700

Cause:
A possible cause can be that the file EXCEL.EXE.CONFIG is missing from the folder where EXCEL.EXE is on the client computer.

Solution:
Create a text file in the \program files\microsoft office\office11\ folder
Name the file to be EXCEL.EXE.CONFIG

Inside the file add this text;

<configuration>

<startup>

<supportedRuntime version=”v2.0.50727″/>

</startup>

</configuration>