I noticed that Version 2.5 of PREPAR3D will restructure the folder path of the configuration files (whatever that means).
Link: http://www.prepar3d.com/forum-5/topic/upgrading-from-v2-1-to-v2-4/#post-97781
Until I verified – SIMstarter IS NOT COMPATIBLE TO THAT VERSION!
Please wait for an update at my website.