FLEXlm installation error

receive an error message when trying to upgrade FLEXlm license manager for AutoCAD 2005.
After starting installation an error window is displayed:
Error 1723. There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact your support personnel or package vendor.

What DLL is it trying to run?

System Info: Windows 2000, Service Pack 3

 

The reason is that the DirextX version is to old. Upgrade to the latest
version.

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Best Regards, Jimmy Bergmark
CAD and Database Developer Manager at www.pharmadule-emtunga.com
Blog: http://jtbworld.blogspot.com
JTB FlexReport (FLEXlm report tool) - www.jtbworld.com/jtbflexreport
SmartPurger (Purges automatically) - www.jtbworld.com/?/smartpurger.htm
or download some freeware at www.jtbworld.com
More on AutoCAD 2005;
www.jtbworld.com/autocad2005.htm