I tried the new Hoster demo and it works ok, I am able to use both my drives.
Also, I searched on Google for WnAspiNT (the title on the message box of the error i'm getting when I launch Microstudio), and I found some possible solutions.
This solution is found on a competitors fourm so I will not post the link:
1) remove any CD burning/authoring software (using the Windows
"Add/Remove" programs), including our program.
(note: After that's finished, go to "My Computer" / "C" / "Program
Files" and delete the entire ***********(Microstudio) folder (not just
its contents), making sure to move out any audio files that might be
stored in that folder first. Find and delete "cdrec.ini", "tour.ini",
"cdrec4.ini", "tour4.ini" and/or "machnm1.exe" (note: you MAY *[probably in our case]
not find some or all of these files).
2) Search your C drive for all of the following files. Delete any that
are found in ANY location:
(note: you may not find some or all of these files.)
winaspi.dll
wnaspi32.dll
aspi32.sys
wowpost.exe
wnaspint.dll
*aspi*.*
After this has been done, shut down your computer and restart it.
Rerun the Goldenhawk "aspight.exe" ASPI install program ONLY.
(found at: http://www.goldenhawk.com, in the "Download area".
Click on "Golden Hawk ASPI drivers for....".)
Reboot.
Then reinstall Microstudio software.
I haven't had time to try this but it may be worth a shot.