Does anyone know how the BSCALE (Express) command really works?I can see no evident difference between the twobasic options of the command for  Absolute (final) and Relative (multiply) scaling.In the command support the followingis mentioned: "Specify the value as a scale factor or the final height".The question is what the "final height" refers to.(supposing that it is the requested size of the block in the vertical direction in drawing units I just see that it is alsointerpreted as a scale factor...)jansens2008-12-13 20:26:46

Option Absolute allows you to type scale, that the block will have.Option Relative allows you to type scale of enlarge.Example: you have the block whose scales in axes X,Y,Z are 3,3,3After choice Absolute and setting X=1 and Y=2 the block will have scales 1,2,1After choice Relative and setting X=1 and Y=2 the block will have scales 3,6,3Kackac2008-12-13 22:07:32

thanks for the answer,but I have tried to do exactly what you said (which is actually what SHOULD be happening) and what I get is a block scaled  3,6,3 units in both methods (absolute & relative).Can this be a internal problem of the express tool itself?
I can upload the drawing (but I'm not sure how to do it)
 

I was trying that before I wrote an answer, and both method gave diferent results (AutoCAD 2007 cz).I thing you can't upload the drawing to this forum, but you can to do it on some web server that provides it, and insert link here.