For reasons that are not clear, this issue occurs in several versions of the D-Link adapter Setup programs. A file called REG.EXE is found to be running and consuming a significant percentage of the processor, which makes the system performance suffer.
Reports are that the D-Link setup process leaves a shortcut to REG.EXE in the All Users' Startup directory, which launches a copy of REG.EXE that exists in the D-Link "Program Files" directory. REG.EXE is an operating system file for updating the system registry. It is not unusual for installation programs or scripts to use REG.EXE in the process of configuring the system, but it is unusual to have that program run repeatedly.
Users may notice that their system performs slowly, that video/audio is choppy, or that Task Manager reports REG.EXE is consuming a high percentage (90-100%) of the available CPU time.
Following the below steps will safely solve the problem:
•Navigate to C:\Documents and Settings\All Users\Start Menu\Programs\Startup
•Locate the file or icon referring to REG.EXE and right click on the icon, choose Delete. When prompted whether to move the program to the Recycle Bin, say Yes. Note: Do not delete any other D-Link files or shortcuts in this folder.
•Navigate to C:\Program Files\D-Link\AirPlus G Wireless Adapter Utility (This directory might have a slightly different name depending on the adapter model.)
•Locate the file or icon referring to REG.EXE and right click on the icon, choose Delete. When prompted whether to move the program to the Recycle Bin, say Yes.
•Restart your computer.