ma693541: Thanks, could you please post the error message or screenshot with a description of how you got the error?
For the self-install script I managed to replace UnADF with FMS and DiskWiz. These two nice tools from aminet has removed the reboot step UnADF required. Now its just adding WORKBENCHDIR device in WinUAE with adf files, start WinUAE, insert Workbench 3.1 disk in DF0 and rest is done automatically