File list (Check if you may need any files):
PayPal\Default.aspx
......\Default.aspx.cs
......\web.config
......\PayPal.sln
......\PayPal.suo
......\Success.aspx
......\Success.aspx.cs
......\Cancel.aspx
......\Cancel.aspx.cs
......\App_WebReferences\PayPalService\PayPalSvc.wsdl
......\.................\.............\EnhancedDataTypes.xsd
......\.................\.............\CoreComponentTypes.xsd
......\.................\.............\eBLBaseComponents.xsd
......\.................\.............\configuration91.svcinfo
......\.................\.............\configuration.svcinfo
......\.................\.............\Reference.svcmap
......\.................\PayPalService
......\App_WebReferences
......\App_Data
PayPal