To identify which AutoCAD LT Update 2 needs to be installed on your system, in Windows Explorer, navigate to the installation folder of AutoCAD LT 2010 (for example, C: Program Files AutoCAD LT 2010). • On Windows XP: right-click on proddata.dll, select Properties and in the resulting dialog select the Version tab. • On Windows Vista and Windows 7: right-click on proddata.dll, select Properties and in the resulting dialog select the Details tab. Note: The file version number for proddata.dll is 18. Williams Furnace Manual 5009622. 0.309.0.0 if Update 2 (version 3) is already applied. If proddata.dll is version 18.0.55.0 or 18.0.215.0, use the following files: (exe - 24786Kb) (exe - 33084Kb) If proddata.dll is version 18.0.59.0 or 18.0.215.20, use the following files: (exe - 24783Kb) (exe - 33063Kb) If proddata.dll is version 18.0.221.0, use the following file: (exe - 20419Kb) You do not have to install Update 1 in order to install Update 2.

Update 2 includes the most recent fixes, as well as all fixes included in Update 1. Readme (select language version): • • • • • • • • • • • • •.