I am using RAM Disk v4.0.8. There is one issue I came across. After moving TEMP folder to RAM Disk, printing won't work anymore in certain programs. I am unable to print from any Office 2016 application and it is not possible to print a Windows test page. Printing in other programs, like Adobe PDF, AutoCAD and Notepad, works fine.
I found out that after moving TEMP folder to RAMDisk with NTFS file system, permissions of TEMP folder are causing these print issues. To solve the permissions conflict, I changed file system of RAMDisk to exFAT. Although you may know about that, I wanted to point that issue out.
I am using the latest Windows 10 1809.