sdclient.exe is a SDClient
belonging to Spyware Detector Enterprise Edition
from Max Secure Software India Pvt. Ltd. www.SpywareDetector.net
Non-system processes like sdclient.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.