Question: Our prices have no binding force and are quoted in EUR according to the regulations of the European Community plus legal VAT Efforts are made to keep the prices stable during the year however possible adjustments cannot be excluded
Please fix the punctuation.
Fixed: [Our prices have no binding force and are quoted in EUR according to the regulations of the European Community plus legal VAT. Efforts are made to keep the prices stable during the year, however, possible adjustments cannot be excluded.]

Question: Try to beat your opponent
Please fix the punctuation.
Fixed: [Try to beat your opponent.]

Question: To change your user password as user
Please fix the punctuation.
Fixed: [To change your 'user' password, as $ user :]

Question: xpsservicesdll missing not found error Unavoidably PC may get infected by virus like BackdoorWin32DelfIT or controlled by malware like ERROR DOCTOR After they are removed by antivirus such as Norton Internet Security 2012 the infected file xpsservicesdll would be deleted as well so that missing problem is found
Please fix the punctuation.
Fixed:
[xpsservices.dll missing / not found error: Unavoidably PC may get infected by virus like Backdoor:Win32/Delf.IT or controlled by malware like ERROR DOCTOR? . After they are removed by antivirus such as Norton Internet Security 2012, the infected file xpsservices.dll would be deleted as well so that missing problem is found.]