the application will be down because of the windows envirornment（dao360).
reinstalling os is recommended.
or to execute the following command might recover the trouble.
regsvr32"c:\program files\common files\microsoft shared\dao\dao 360.dll"

不要重裝系統，重裝軟件就可以了，如果你是實名的，我可以告訴你重裝。