I've only done this with the original version of the
game, playing in DOS mode. I don't know if it works
for Windows.
Choose full install
Create folders named CD1 and CD2 in C:\CIRCLE
folder
Copy Music and Speech folders and Cd1.id file from
game CD1 to C:\CIRCLE\CD1
Copy Music and Speech folders and CD2.id file from
game CD2 to C:\CIRCLE\CD2
(Don't forget to copy the CD1.id file and CD2.id files
as well as the folders or it won't work)
Edit Sword.inf in C:\CIRCLE so instead of
E:\Speech\
E:\Speech\
E:\Music\
E:\Music\
(where E:\ is the CD drive)
you have
C:\Circle\CD1\Speech\
C:\Circle\CD2\Speech\
C:\Circle\CD1\Music\
C:\Circle\CD2\Music\
When it asks for CD during game, it Enter (or probably
hitting any key would work)