System Startup malicious programs

[gopackgo]

I am running on a Windows Vista Home Premium with version 1.5.1. Under system startup it says that I have two items that are malicious. Is this a false positive or is this real?

Located: HK_CU:Run, Sidebar
where: S-1-5-19...
command: %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem
file: C:\Program Files\Windows Sidebar\Sidebar.exe
size: 1196032
MD5: 43632977504B323F8A41BF7A9965C453

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Located: HK_CU:Run, Sidebar
where: S-1-5-20...
command: %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem
file: C:\Program Files\Windows Sidebar\Sidebar.exe
size: 1196032
MD5: 43632977504B323F8A41BF7A9965C453