"Command: _qsave*Warning* Multiply owned object, handle "8CFCA7"can any one tell me what this warning means and how to get rid of it. My dwg is very slow.I have a lot of different handle codes handle "8CFCA7"handle "8F139D"handle "38D59"handle "37B93"handle "369D9"handle "37BB3"and many more ...Can anyone help me !Thanks

I was told toCommand: (entdel handent "myhandle"); error: too many arguments...don't know what to do...

You can try e.g. [CODE](entdel (handent "8CFCA7"))[/CODE]

I tried that but I get the same message -> ; error: too many arguments

Are you sure? It works fine for me.
 
You might have redefined the entdel or handent funtions. Try it in a fresh AutoCAD session.

wow... don't know what to do, it doesn't work :S

Just copy/paste the above code in your AutoCAD command line (1:1, including the parentheses) - it should either say something about "nil" (if you don't guess the right entity handle) or it should just delete the object.