https://www.infopathdev.com:443/blogs/hilary/archive/2011/12/30/qrules-sandbox-and-web-service-calls.aspxForms injected with qRules or that have custom code can be published as sandboxed in SharePoint 2010, if your SharePoint install has sandbox enabled. However, we are seeing that forms that have a loading event (either from the injected qRules DLL or inenCommunityServer 2007 SP3 (Build: 31118.962)