I have a clueless friend who wants to try Linux instead of paying to upgrade all her MS stuff to full versions now she is no longer a student..
However her DSL connection (99% of her needs) needs setting up and I thought it might be possible to just replace some of the files on the actual ISO with the connection params .. Im not adding or removing packages, just want to change what is needed and already installed....
Could I just edit the files in the iso image after mounting it -o loop and burn it?

Is this do able or do I need to completely remaster