Currently using lansweeper 4.1, but I have also tried the following in the previous 4.0.0.1+ releases.
I have followed all of the instructions on the site in regards to opening everything up for WMI. I have made sure all the proper services are running. I can even connect to everyones registry remotely in regedit. I have also disabled the firewall on my Windows 7 system and set all sorts of permissions in regards to my WMI and the permissions for the winreg key have been set properly.
Also all these systems pass the Test Connection application in lansweeper, but here is the error log. I also know for a fact that the 3 registry keys I am attempting to scan for are valid on most if not all the systems.
02/01/2011 10:00:44: J39XXXX REGISTRY Access denied
at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
at System.Management.ManagementObject.InvokeMethod(String methodName, ManagementBaseObject inParameters, InvokeMethodOptions options)
at LansweeperService.MdlRegistry.LSRegistry(LSWComputer& mycomputer, String section, SqlConnection& sqlcon)