Well,..
I don't know what to say...
I've just tested on fresh computer,... win7 without ObjectDCL on CAD 2013,2014 and 2015...and all work great.
any more information about this will be helpful..
if you had old release before...please uninstall it and/or delete the entire installation folder.
also...be sure to remove all registry information.
\HKEY_CURRENT_USER\Software\DuctiSoft\DiLeader
please let me know if someone else have same issue..
thank you.