Franz patched the emacs-lisp interface slowness that was keeping me from upgrading to 6.1:
  Thu Jan 17 12:06:47 PST 2002
   Patch: acl612.dll, acli612.dll
    Windows only: Corrects a problem on windows where winsock was not
    waking a thread waiting on i/o, sometimes causing 1+ second long
    delays when activating a thread. This was particularly noticeable
    when using ACL via the Emacs-Lisp interface.
   Impact: Recommended for ELI users on Windows platforms.
Mike installed it, and it works. Lisp in emacs is fast again.
Posted by jjwiseman at January 18, 2002 03:14 PMsir, 
    I need acli612.dll file to execute some program.
please send acli612.dll file to me.
bye
raghu
Uhh, you should ask the person/company you got "some program" from.  And, why the heck are you posting this here?