1424399 - 'Manage Add-ons' option is disabled in Xcelsius 2008.

How to enable 'Manage Add-Ons' option in Xcelsius 2008?

• Xcelsius 2008
• Operating System : Windows Vista

0. Launch Xcelsius
0. Go to File -> Manage add-ons.
0. Option is disabled. 

User Account Control (UAC) is enabled Windows Vista.

Disable User Account Control (UAC) on Vista. The steps for the same would be as follows:

0. Launch MSCONFIG by from the Run menu.
0. Click on the Tools tab. Scroll down till you find "Disable UAC". Click on that line.
0. Press the Launch button.
0. A CMD window will open. When the command is done, you can close the window.
0. Close MSCONFIG.
0. Reboot the computer for changes to apply.
0. Launch Xcelsius, Nowyou can install your add-ons.

OR

Turn Off the UAC on Vista machine. Refer the below link for the information on how to turn off the UAC in Vista:                                                                                  
http://www.howtogeek.com/howto/windows-vista/disable-user-account-control-uac-the-easy-way-on-windows-vista/

http://maximumpcguides.com/wp-content/uploads/2007/03/disable_uac_msconfig.PNG                  

Manage add ons disables, Xcelsius,Vista,UAC , KBA , BI-RA-XL , Obsolete: BusinessObjects Dashboards and Presentation Design , Problem