Pivia Software this week plans to unveil two products to help enterprise IT managers improve the performance of WAN, LAN, Internet, extranet and remote applications.Pivia Performance Server (PPS) 4.0 software now tracks the performance of applications integrated into portals and prioritizes application acceleration based on end-user needs. PPS 4.0 can now tell IT managers which portlet, or application in a portal, is causing the entire portal to perform poorly.The company will also unveil PPS Remote, software to enable real-time collaboration between end users in disparate geographic locations. For example, an employee at corporate headquarters and an employee at a remote branch would be able to use the same enterprise applications and portals and get the same performance experience."[PPS Remote] will help companies deliver point-to-point application optimization over the WAN and Internet," says Albert Gouyet, Pivia vice president of marketing. "It performs more intelligent, smart caching at the network edge."PPS software is installed on a Linux server, in front of Web servers and in back of load balancers in a data center. If there is no load balancer, the box sits in front of a router and firewall. It does not sit in line and doesn't represent a single point of failure, Pivia says. PPS Remote is also installed on a Linux server at remote locations in front of the remote end-user desktops.PPS 4.0 and Remote watch application packets, looking for redundant or repeated patterns to cache. The company says the product performs event-based caching, meaning the content is dynamic, not static."Event-based caching allows you to cache objects that might change relative to content," Gouyet says.Available now, PPS 4.0 pricing starts at $50,000, and pricing for PPS Remote starts at $20,000.