encoderserver.exe is a application which is probably NOT a virus. So, if encoderserver.exe is on your PC, it is probably ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to use a well-known antivirus with a good detection rate, in order to defend your system against viruses and malware.
This program is usually stored in C:\Program Files (x86)\RivaTuner Statistics Server\EncoderServer.exe.
The MD5 fingerprint for this executable is 7d9ade45fa902003da146a6a0f595592.
This application is NOT a Windows service. This is good.
This app runs as a 32-bit program. It does not exploit the full power of modern PC chips. This is quite normal because the publishers did not upgrade it to use the x64 instruction set.
The description extracted from the exe is EncoderServer.
File version stored as a property 18.104.22.168.
Copyright notice Copyright © 2013-2014 by Alexey Nicolaychuk aka Unwinder.
This task does NOT have visible elements of user interface. This is usually a bad thing.
The digital signature is missing from this program. The maker did not bother to sign it. This is probably bad.
It has an uninstall string in registry, which is good. si are uninstall.