ExtendSim 10 was released in October 2018. ExtendSim 9.3.1, released October 2019, was the final update for the ExtendSim 9 series.

If you still need to use ExtendSim 9 (for example, the third party module you are using with ExtendSim has not yet been updated to ExtendSim 10), please know it will no longer be supported with updates. Hence, if Microsoft makes a change to their operating system, it may cause older releases of ExtendSim to stop working. Therefore, as is true for all software, we highly recommend using the most current release of ExtendSim.

If ExtendSim 9 is required, Single User ExtendSim 9 licenses are currently still available through these unique links, but may not be for much longer:

ExtendSim 9 Package   Cost
ExtendSim Suite 9 . . . $4995
ExtendSim AT 9 . . . $2495
ExtendSim CP 9 . . . $995
ExtendSim Analysis RunTime 9 . . . $495
ExtendSim Student 9 . . . $100
ExtendSim Demo 9 . . . no charge

Maintenance & Support Plans (MSP) cannot be purchased for retired software. In the absence of a current MSP, support is not provided and upgrades to ExtendSim 10 must be purchased at the full upgrade price. Even with a current MSP, technical support for ExtendSim 9 is minimal.

If you have a current Maintenance & Support Plan for a Single-User license of ExtendSim 9, we only provide support for transitioning from ExtendSim 9 to 10.

For Network licenses of ExtendSim 9, we can still provide new site.tmp files, upgrades to ExtendSim 10, and so forth, as long as the MSP is current.