Temporarily Suspending Background Program From Running

For the last couple of years I have used a security program (recommended by Bank of America), called Trusteer, by Rapport (or vice versa). Supposedly, its intent is to protect one's computer when visiting web sites (such as that of a bank for online banking purposes). One can also use the software to protect log-ins at other sites of one's choosing.

Recently, I have been blocked by Trusteer from downloading financial information from a reputable site that I have used for years. It is telling me that the IP address is not recognized, and that it is "substituting a known good address for that site." I can access the site, but I cannot download information. If I go to one of my guest operating systems (I use VMware) that does not use Trusteer, I have no problems.

On a Vista platform, I am able to go to START/All Programs/Trusteer where I can execute a file to stop/start/or uninstall the program. In Window 8, I go through Windows Explorer to Program Files (x86) /Trusteer to get to these files. But, when I click on the Stop Program file, the display tells me that it is an ICO file (obviously not an .exe file?), and asks me how I want to open the file. The software appears under Programs and Features in the Control Panel, but at this stage I do not yet want to delete the software - only cease it from running. How does one execute an ICO file?