It appears to be an installer for NSDL’s SafeScrypt client or e-Sign user setup utility (version 2.0.0 or similar).
It’s used to:
Common filename pattern: NSDLSSUserSetup_2.0.0.x.exe or similar. nsdlssusersetup200 download link
Suppose you have verified the file’s legitimacy via a checksum match with a known good copy. Here is the typical installation flow for a DLSS injector tool: It appears to be an installer for NSDL’s
If you’ve landed on this page, you’ve probably been searching for the NSDLSSUserSetup200 download link. Whether you’re a PC gamer trying to boost your frame rates, a modder attempting to force NVIDIA's Deep Learning Super Sampling (DLSS) into an unsupported game, or simply troubleshooting a file name that appeared out of nowhere, you need to understand what this file is—and more importantly, whether you should trust it. Common filename pattern: NSDLSSUserSetup_2
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