I spent a few hours at my Mom's house trying to get the 3D Husqvarna Embroidering system installed under Windows Vista. It took a lot of wrestling but here's how I got it to work. Hopefully, with these instructions, you'll find it much easier to do than I did.
Another user has also reported that these instructions also work, as is, under Windows 7 Home edition.
Step 1 - Install your 3D Embroidery CD
In my case we had the 3D Embroidery 7.0 CD. First, I installed that.
Step 2 - Install the 3D Embroidery 7.25 Upgrade
In order to get to the latest version, I downloaded and installed the 7.25 Upgrade. In case that link goes bad, I found the upgrade by visiting the Husqvarna Downloads Page then clicking the 3D Embroidery System link.
Step 3 - Install the Vista Dongle Patch
In order for the program to work under Windows Vista you'll need to install the Windows Vista Dongle Patch. If that link doesn't work, I found that file on the same [http://www.husqvarnaviking.com/us/3889.htm|Husqvarna Downloads Page]] as the upgrade. Again, I followed the 3D Embroidery System link.
Step 4 - Install the Latest Hasp Dongle Driver
Finally, when staring Embroidery 3D I would get an error of Hasp Driver Not Found or Hasp Driver Not Installed (I don't recall which). To solve that problem I installed the latest version of the Hasp Dongle Driver, which I found on the Husqvarna Other Useful Software page.