Right-click the NSS desktop shortcut, select Properties , go to the Compatibility tab, and set it to run in compatibility mode for Windows XP (Service Pack 3) or Windows 7 . Run the program strictly as an Administrator. If you need help configuring this legacy setup, tell me: What model of Nokia phone you are trying to modify? Which version of Windows is running on your computer?
Version 1.0.38.15 was a significant update primarily because it added official support for Windows 7 and improved Vista stability. Older versions of NSS frequently crashed or refused to recognize USB devices under these new operating systems. This version also introduced the "Virtual USB device" support, which stabilized the connection between modern PC architectures and the legacy Nokia connectivity drivers. nemesis service suite nss v103815 download link
When using a tool like NSS (Nemesis Service Suite), you are manipulating the phone at a level deeper than the operating system. This comes with responsibilities. Right-click the NSS desktop shortcut, select Properties ,