fsorsp.exe is a program which is probably legit. So, if fsorsp.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to purchase a well-known antivirus with a good detection rate, in order to yourself your PC against viruses and malware.
Usually, this program is located in C:\Program Files\F-Secure\ORSP Client\fsorsp.exe.
The MD5 checksum for this program is 277a41eb7d2daa7105df85bfc2f1c9ad.
This program is a Windows service. This means it runs on your system in background, usually without showing any user interface to you. Most Windows services are ok programs, which perform useful features to other programs or to Windows in general.
This executable uses the Internet to communicate. In this day and age this is ok. For example, most of the programs on your computer check for new updates. For this, Internet communications are necessary.
This executable runs in 32-bit mode. It does not benefit of the entire power of nowadays' PC CPUs. This is quite normal because the makers did not bother to upgrade it to 64-bit code.
The description present in the file is F-Secure ORSP Service.
File version 1.1.25 build 2439.
Company name F-Secure Corporation.
Legal copyright © 2007-2014, F-Secure Corporation.
fsorsp.exe has a digital signature. Nowadays the large majority of virus-free software applications are digitally signed.
The digital signature extracted from fsorsp.exe verifies as ok. This is excellent.
Digitally signed by: F-Secure Corporation
Certificate's issuer name: GlobalSign CodeSigning CA - G2
This application does NOT have a removal routine set up in registry.