The easiest way to detect eBlaster, is to just try to reinstall eBlaster. Durring the process of reinstalling it will as you for a password. That is the previous password, not for you to set one up. If it asks for a password, then it is installed on the computer.
Let me think on this. I think that I could use the serial number for an eBlaster in my inventory and send it to you Deb, then you could ‘test’ install it (without really installing it unless you wanted to buy it). That way you would know if eBlaster was installed if it asked for the password before installation.
Just remember though, there are other computer monitoring systems out there, so this technique would not work with them. ~ JoAnn