Jacob Jaffe, group product manager at Microsoft, said digital signature support has been improved in the SP1 release, offering tighter security and support for third-party products. Once a form has been digitally signed it cannot be edited.
Another area of improvement is the rules engine. "It is easier to integrate rules into existing business processes," said Jaffe.
According to Jaffe, this could be used to build an expense-processing application based on human resources services in Biztalk 2004.
A related feature supports rules-based routing which, Jaffe said, would prevent a member of staff from viewing privileged information on a form.
Another addition is support for Microsoft's Visual Studio.net development environment. Although the current release of Infopath only supports scripting languages such as VBScript and JScript, the SP1 release of Infopath will work in the Visual Studio .net environment.