Adding this registry key has been a solution for tons of problems related to network drives for a long time, and its explaination doesnt make sense for my part. I understand that tokens are created for the network shares and if you do a runas as a admin or elevate UAC another token is used, and you dont get Access to Your network shares anymore.
But Clients who are not admins are getting problems accessing the Network shares without there beeing any network issues. Adding EnabledLinkedConnections 1 solves this problem.
Like one user tries to open a program that needs to reads from two network shares. They are both there and accessible yet the program refuses to believe this. But after adding this registry key, it Works like a charm.
So what does this key do ...