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A user came up with a problem recently. They had a disc image
of Sibelius (I am not sure how this had been created) and needed
to install Sibelius on VRPC. The problem was that their machine
didn't have a floppy disc drive and that the Sibelius installed
wouldn't run from the 2nd floppy (the one that reads disc images).
This is the workaround that we used.
You can make ADFS:0 the "virtual" floppy drive quite easily. In order
to do this you first need to quit VRPC and then make a backup of
your VRPC models folder.

Then you will need to edit the particular model file you are running
when installing Sibelius (for example the ARM710 one). The models
files will be in:

C:\Program Files\VirtualAcorn\VirtualRPC-Adjust\Models\xxxx

You need to load the model.cfg file into NotePad. Double click
on the file and it may load - if not tell Windows you want to open
the file using a program chosen from a list - and choose NotePad.

You will see that the model file is human readable.
Find the [RealFloppy] section and delete it (not just
the one line the entire pargraph). Now save the model
file and load VRPC.

ADFS drive 0 will now be referenced to your floppy image. You
shoudl now be able to install Sibelius - provided that it will
run from the image and that the image you created is complete
and has a copy of Sibelius to install.
Note that in order doe Sibelius to install the VRPC needs to have
the ADFS harddisc image activated (set the number of ADFS
harddiscs to one) and needs to be Booting from this ADFS
drive.