lsprepost4.11_dp.exe lsprepost4.11_dp is a special version of LS-PrePost that employs 64bits data for all floating points numbers as well as integer numbers. Therefore, it can handles very large IDs. For example, in the regular version of LS-PrePost, all IDs cannot be larger than 2**31, which is about 2,147,483,648, any ID number greater than this value will not be recognized and will become garbage. If any user wants to handle a model with IDs (parts, material, section data) that are 11 digits or larger, he/she will need to use this _dp version. Because the data size is double, therefore lsprepost4.11_dp.exe also uses twice the amount of memory comparing to the regular version. Installation of lsprepostt4.11_dp on Windows systems: 1.) Install LS-PrePost--x64-_setup.exe 2.) move lsprepost_dp.exe to the installation folder of step 1 3.) create a shortcut of the lsprepost_dp.exe on the Desktop (right-click on the lsprepost_dp.exe, and select "create shortcut on Desktop") 4.) You may rename the shortcut on the Desktop