This is the same program from the August issue of Inside Autocad from ZD. DDE-M2.LSP is designed to change dimension text from english units to metric units. The program utilizes the entity data base information to determine the distance of the dimension in english units and based on the user choices, changes the dimension text to millimeters, centimeters or meters.Dimensions in AutoCad drawings may be changed to metric automatically by setting the dimension variable DIMALT to be "on", however this technique leaves the english dimension text and includes a metric alternate dimension text next to the english one in brackets. This technique makes dimension strings too long and makes the drawing look too busy. The DDE-M.LSP converts the english dimension to metric and only puts the metric text on the dimension line.The DDE-M program includes a dialog control (DDE-M.DCL) that gives the user several choices for the metric dimension text. The user may choose either millimeter, centimeter or meter dimensions. This choice sets a program variable to establish the suffix printed with the metric dimension text. The user may select to suppress the suffix printing. The user has a choice of decimal places for the metric dimension...from none up to eight decimal places. The final user choice is the selection of the dimensions that will be changed. The user may choose a global selction, in which the program selects all dimensions of the following type:Horizontal, Vertical, Rotated, Aligned, Diameter, Radius, The user may choose to select the objects manually by using normal AutoCad selection techniques (pick, window, crossing, etc.). The next challenge will be to write a program to change dimension text from metric to english. This should be quite simple..just do the DDE-M.LSP program in reverse!!