Download rassapi.dll file from the collection of DLL libraries and OCX elements. Perhaps this file will help you to correct the error "the rassapi.dll library is not found" which appears as a result of incorrect operation of the Windows operating system or work with the program.
How to download free rassapi.dll?
Also, this file may be required when developing software. When using the rassapi.dll file, you should review the copyrights to it.