This all comes from Windows getting so easily virus infested. The morons at Micro$oft actually believe that setting a maximum unchangable limit on TCP connects will actually prevent the rapid spreading of a virus if your computer gets infected.

Running the patch will not in any way make your computer less secure. It may or may not slow down the pace that an allready infected PC will spread a virus.

Especially on Dial-up this will have no effect what-so-ever since the max speed is what 56 kbps ?

On a High speed connection this limit will have almost no effect either