Hi. I've been using the CalulateAcres.dll script (http://arcscripts.esri.com/details.asp?dbid=12307) all the way through version 10 on XP. Recently we've upgraded to 64 bit running on Win 7. For a reason unknown to me, I can no longer add that dll or others to ArcMap. Any ideas on getting around this issue? I am not sure if it is Win 7, or 64bit issue. Thanks in advance.
You can use Calculate geometry to calculate Areas. Right-click on your field table and click Calculate Geometry. and before make sure that you have the right projection.
Since you want selected features to be calculated, just input a layer or table from the table of contents in ArcMap that has a selection -- only selected features/rows will be calculated.
Is there a way to calculate area through a toolbar button, without calculating a field in the attribute table? I also used the CalculateAreas.dll script and found it very useful, but cannot install it at Arc10.