BTW, how do I uninstall this useless piece of junk?
U can do it manually:
c:\Users\%username%\AppData\Roaming\Microsoft\AddIns\HistogramPlus\uninstall\unins000.exe
or delete c:\Users\%username%\AppData\Roaming\Microsoft\AddIns\HistogramPlus and
c:\Users\%username%\AppData\Roaming\Microsoft\AddIns\HistogramPlus-S