Product:
Cognos Controller 10.1
Microsoft Windows 2008 R2

Symptom:
When starting Cognos Controller client, it will hang and not show up.

This happens on a client computer (citrix server) that run a 64 bit operation system.

Possible error:
Microsoft IE Execute shell
Microsoft IE Execute shell has encountered a problem and needs to close.
We are sorry for the inconvenience.

Cause:
Cognos Controller is a 32 bit application, and will not execute in a 64 bit Internet Explorer.

Possible Solution:
Set the Client computer (citrix server) to process all NET framework code as 32 bit.

start cmd by select “run as administrator” from start menu on client computer.
go to c: drive
change to folder with command: cd %windir%\Microsoft.NET\Framework64\v2.0.50727
Enter command: Ldr64.exe setwow

More information:
On Windows 2008 R2 server when running Controller Configuration, you must right click the program and select Run as Administrator.

Ensure that the client have trust to the Cognos Controller server.
Check by running CASPOL -LG from the Microsoft.NET\Framework\v2.0.50727 folder on the client. This will list the servers that the NET framework client trust.

When you run the caspol command, you must start the command prompt/bat file by right clicking the program and selecting Run as Administrator.

start cmd run as administrator
cd C:\%windir%\Microsoft.NET\Framework\v2.0.50727
caspol -q -m -ag “All_Code” -url http:// SERVERNAME /* FullTrust -name “Controller_ SERVERNAME ” -d “Controller_ SERVERNAME ”

(replace SERVERNAME with the name of your server NetBios or FQDN depending what you have setup)
Run the CASPOL command once for FQDN and once for the NetBios Servername to ensure the clients access to the server.