To help others, you need to search as follows:
Series: Legacy
Product: Enigma (rather than the hardware you have)
OS: Windows Vista (32-bit) SP2
That's an old OS version, but Enigma is not listed for any later version of Windows. It does seem to run OK on Windows 10 (64 bit). It's Enigma v1.2.
There is also an old Mac OS version (Mac OS 10.2.8, Enigma v1.2.2) - but I can't test that.
It is available if you search as fiollows:
Series: Legacy
Product: Enigma (rather than the hardware you have)
OS: Windows Vista (32-bit) SP2
That's an old OS version, but Enigma is not listed for any later version of Windows. It does seem to run OK on Windows 10 (64 bit). It's Enigma v1.2.
There is also an old Mac OS version (Mac OS 10.2.8, Enigma v1.2.2) - but I can't test that.
I'd contest the point about Windows 10; after the 1709 update to Windows 10 Pro, Enigma stopped working on my studio PC. It runs on a VM instance with Win8.1 installed, but you can't map locally-connected USB peripherals to a Hyper-V instance. If you have any compatibility settings you *know* work, I'm all ears.
Ian Carbarns, the last available version is 10.5.8. I downloaded it on my iOS Catalina 10.15.?, but when I try to open it. It states to contact the Developer citing it needs to be updated. So I think the end of the line is here for Enigma and M-Audio. Tried searching for the OG CD-ROM that comes with purchase, but none are available online for sale.
Series: Legacy
Product: Enigma (rather than the hardware you have)
OS: Windows Vista (32-bit) SP2
That's an old OS version, but Enigma is not listed for any later version of Windows. It does seem to run OK on Windows 10 (64 bit). It's Enigma v1.2.
There is also an old Mac OS version (Mac OS 10.2.8, Enigma v1.2.2) - but I can't test that.
Series: Legacy
Product: Enigma (rather than the hardware you have)
OS: Windows Vista (32-bit) SP2
That's an old OS version, but Enigma is not listed for any later version of Windows. It does seem to run OK on Windows 10 (64 bit). It's Enigma v1.2.
There is also an old Mac OS version (Mac OS 10.2.8, Enigma v1.2.2) - but I can't test that.