dgnsvc.exe is a application which is probably NOT a virus. So, if dgnsvc.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your PC is clean, it is still recommended to run a well-known antivirus with a good track record, in order to yourself your PC against threats.
This application is usually found in C:\Program Files (x86)\Common Files\Nuance\dgnsvc.exe.
The MD5 checksum for this program is 78675536d8b6e2d96b59196c2be3ebf2.
This program is a Windows service. This means it operates on your PC in background, usually without displaying anything to you. Most Windows services are legit programs, which provide useful features to other programs or to the Windows Operating System.
This app runs as a 32-bit program. It does not benefit of the full set of features of nowadays' computer chips. This is quite normal because the authors did not bother to upgrade it to 64-bit code.
The description present in the program is Dragon NaturallySpeaking Service.
File version stored as a property 12.50.000.142.
Company Nuance Communications, Inc..
Legal copyright Copyright © 1991-2013 Nuance Communications, Inc..
Some insecure features of the Operating System have been used, such as functions for tapping the keyboard. We advise you to read more about this program.
dgnsvc.exe has a digital signature. Today most clean programs are digitally signed.
The digital signature found in dgnsvc.exe checks out perfectly. This is excellent.
Digital certificate name: Nuance Communications, Inc.
Certificate's issuer name: VeriSign Class 3 Code Signing 2010 CA
This application does NOT have a removal routine set up in registry.