Good morning too, Marga,
This time i have better understood the problematic.
Incidently, your english is very comprehensible, and i have learn a new idiom with "mess around" ; thanks for that.
I will send a private mail to Heis Spiter if he can do anything for your need.
However, the actual software tool does not need any install for itself : it makes the install or the update of the plugins you choose in the file list.
The first time you run pf-plug.exe, the connection is perhaps a little lengthy, but the following one for the update is very short. This operation does not be done every day, but allows to get quickly the last updates, when be published on the forum.
I think, also, your "pupils" will soon enjoy with cable or ADSL transport at rather low cost with free telephony, and free television.
Have a nice day.