What is stlport_4_0_0_ddr.dll doing on my computer?
stlport_4_0_0_ddr.dll is a STLport_4-0-0_release
Non-system processes like stlport_4_0_0_ddr.dll 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.