I upgraded to mechanical 2013.
I know that Autodesk has an "acaddoc.lsp" in the directory.
Since the company announced its new rules, no one can modifiy the acaddoc.lsp that autodesk supplied.
I then create my "acaddoc.lsp" and place it to another folder which is in a search path.
But I found that all my routines can't be loaded automatically.
Thanks for your help.