Applications2u provides 99.999% uptime to your applications.  We accomplish this by using the Citrix XenApp product line.

Citrix XenApp™ is a Windows(r) application delivery system that manages applications in the data center and delivers them as an on-demand service to users anywhere using any device. XenApp reduces the cost of application management by up to 50 percent, delivers any application instantly to users anywhere and improves application and data security.