WYSIWYG dhtml EDITOR line space problem

Dear all,

I am using VB6 and running the following code from:
Visual HTML (WYSIWYG) Editor
http://www.mewsoft.com/download/webawy.zip

----Everything is fine.... but I cannot select the text and
set Line spacing/ line-height=150% or 250%

The HTML code is simple:
<Font style="line-height=150%"> any text </Font>

I can insert it manually in HTML view. and it works,
BUT I want to insert in the Design View itself with a right click context menuafter selection of text.

Please help Me in this situation.

I cannot handle the selected content from the design view.
I have seen the cut,copy etc codes, but they are direct commands and i did not find any command in MSDN in details search
i tried many commands
Dhtmleditcmdid etc
DHTMLEDITCMDID ExecCommand, OLECMDEXECOPT etc....


Thanks and Regards
cingo s

no one to help me yet?

seems like i posted in the wrong category?

but it is about VB6!