I wrote some Powershell sensors to monitor DB2, and I didn't see any way to specify a delta sensor type. Many of the values I'm capturing are ever-increasing numbers (rows read, statements executed, etc), and I am trying to capture and graph the delta values like I've done in other tools such as RRDTool. It looked to me like PRTG v7.2 only allows SNMP custom sensors to process delta values from counters. Did I miss something? If I'm correct that EXE sensors can't process delta values in that manner, which version of PRTG offers that capability?