ACSYS in WinUAE how-to

I have tried running the ACSYS harddisk file in WinUAE, but when I try to doubleclick the icon in Workbench, I just get an error message:

Es ist kein AGA Chipsatz vorhanden = There is no AGA chipset present

These are my settings:

Quickstart - Model : A1200
Configuration : Basic non-expanded configuration
Floppy Drive : DF0: workbech132.adf

Hardware - CPU : 68020, [x] JIT
Chipset : [x] AGA
ROM : KS ROM v3.0 (A1200) rev 39.106 (512k)
RAM : Chip = 2 MB, all other = none
Floppy drives : as above
Hard drives : DH0, n/a, <path to acsys.hdf>, yes, 512, 2.0M, 0

Do I need one of the later workbenches? I have the Amiga OS 3.5 ISO, should I install that somehow?

You must download AcsysWinuae.zip from
http://www.unique-software.de.vu/
The game is start without Workbench or use setpatch in WB