Asp.net API in Java and Android

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http://stackoverflow.com – So I am trying to contact an asp.net API that wants the parameters as an xml-string: /v3/publicservice.asmx/GetSearchResultAdvancedXml?queryXml=string http://api.tradera.com/v3/publicservice.asmx?op=GetSearchResultAdvancedXml Thing is, I get this message: "A potentially dangerous Request.QueryString value was detected from the client." Which appearantly is solved by: http://stackoverflow.com/a/2673905/585137 <system.web> <compilation debug="true" targetFramework="4.0" /> <httpRuntime requestValidationMode="2.0" /> </system.web> I want submit this somehow i (HowTos)