Microsoft BizTalk Server is a business process management server product by Microsoft which allows software applications to communicate for enterprise application integration. BizTalk enables companies to integrate and manage business processes by exchanging business documents (e.g., purchase orders and invoices) among applications, within or across organizational boundaries. BizTalk Server 2004 provides SOAP Web Services interfaces, and is the first version that uses Microsoft .NET technology. Development for BizTalk Server is done through Visual Studio .NET.