C#获取U盘盘符、序列号的Windows服务并依据数库判断U盘合法性

<NewDataSet> <xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> <xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:MainDataTable="UDisk" msdata:UseCurrentLocale="true"> <xs:complexType> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element name="UDisk"> <xs:complexType> <xs:sequence> <xs:element name="SerialNumber" type="xs:string" minOccurs="0" /> <xs:element name="IsLegal" type="xs:boolean" minOccurs="0" /> <xs:element name="AddTime" type="xs:string" minOccurs="0" /> <xs:element name="VisitedTime" type="xs:string" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema> <UDisk> <SerialNumber>834340270007</SerialNumber> <IsLegal>true</IsLegal> <AddTime>2012-10-31 14:06:09</AddTime> <VisitedTime>2012-10-31 14:06:09</VisitedTime> </UDisk> </NewDataSet>