It’s not absolutely clear which product this file is part of and who is its author. Sometimes files like this can be dangerous. Make sure oasrv.exe is a safe file by scanning your computer for viruses.
It’s a hidden file. Oasrv.exe is usually located in the %PROGRAM_FILES% sub-folder and its usual size is 5,396,544 bytes.
Common path(s): subfolder in %PROGRAM_FILES%Keywords(s): monitor, hiddenFilesize(s): 5,396,544 bytes, 5,384,768 bytes, 3,321,032 bytes, 4,849,728 bytes