If you are receiving an error message that “realspace3d_vsEngine.dll cannot be found.” The problem may be that the Unity /Plugins folder has platform specific folders /x86 and /x64. Currently RS3D installs to the /Plugin folder and it seems if another plugin uses the platform specific folders Unity is ignoring the root /Plugin folder. So, if you are having this problem you can copy realspace3d.dll and realspace3d_vsEngine.dll to the /plugins/x86 folder.
This will be rectified in our next release 0.9.6 coming soon.
Thank you to Farid Ansari one of our users for finding this bug and the solution. 5 stars rewarded to Farid. 🙂