sidebar.exe is a program which is probably NOT a virus. So, if sidebar.exe is on your computer, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a good antivirus with a good detection rate, in order to yourself your PC against threats.
Usually, this application is found in C:\Program Files\Windows Sidebar\sidebar.exe.
The MD5 fingerprint for this executable is 9b0b4462bfc3afc40040780d6326ab8a.
This application is NOT registered as a Windows service. This is good.
This application uses the Internet to communicate. Today this is ok. For example, most of the apps on your PC check for updates. In order to do this, Internet communications are necessary.
64-bit code has been detected. This exe can exploit the full power of a modern computer cpu.
The description written in the exe is Windows Desktop Gadgets.
File version stored as a property 6.2.8400.0 (winmain_win8rc.120518-1423).
Author Microsoft Corporation.
Intellectual property rights notice © Microsoft Corporation. All rights reserved..
sidebar.exe appears to have visible windows. This is good because it doesn't work in some kind of invisible mode. Its activity is clearly shown to the user.
The digital certificate is missing from this program. The authors did not bother to sign it. This is usually bad.
This program does NOT have an uninstall routine set up in registry.