Also, considering the time frame (2010), their system might not support modern software, so they might need to find a workaround, like running an older OS in a virtual machine or using compatibility modes.
The term "MULTi" could imply they need a version that works on multiple platforms. QuarkXPress was traditionally for Mac, but there was a PC version in the past. So maybe they want the multi-platform version. But even then, they'd have to consider the OS compatibility. QuarkXPress 8.5 -2010- Key -App--MULTi- Download
I should structure the response to first acknowledge the request, then explain the challenges of obtaining and installing such an old version. Emphasize legal and safe download methods, perhaps suggest contacting Quark's support for assistance, and mention alternatives if they can't find the specific version. Highlight the risks of unofficial downloads and recommend checking the official website for legacy versions. Also, mention possible system requirements if they plan to run it on newer hardware. Also, considering the time frame (2010), their system