I think what he mean is that when you tried to run the 2.0 version it will show you an error like this:
Could not load file or assembly 'MyRouterTools, Version=188.8.131.52, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.
File name: 'MyRouterTools, Version=184.108.40.206
I install version 2.0 but it won't run because everytime I run it will return an error with the message like the above.
I have no problem with the previous version.
I'm using windows 7 64bit. My wireless card is Ralink RT61.