Question: how to access hkey_current_user remotely?
Answer: To do that, connect to the remote machine and Go to 'HKEY_USERS'. The current user will be the longest key without '_Classes' on the end. If you have more than 1 long key then you can find out which key is which by browsing to 'HKLM\SYSTEM\CurrentControlSet\Control\hivelist' and matching the keys.