Got several hits using Google. This one might be what you are looking for:http://zao.jp/radio/soft66ad/
From some other posts I found, it appears that you need a version of EXio.dll
specific to your receiver.
The forth post in this link:http://forums.qrz.com/showthread.php?285432-software-defined-radio-Soft66lc2
explains the need for the special version of EXio.dll
The first link should have the file you need in it. Just placing the dll in the application's folder
may not work. It may need to be registered with Windows before it will work. There may be
an installer that will allow it.
Here's the Google Search return I got:http://www.google.ca/search?as_q=&as_epq=Soft66lc2&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&tbs=&as_filetype=&as_rights=#q=%22Soft66lc2%22&hl=en&lr=&tbo=d&as_qdr=all&ei=fOEOUffiM8SjqQHV7YCoDw&start=20&sa=N&bav=on.2,or.r_gc.r_pw.&bvm=bv.41867550,d.aWM&fp=2fcfb03ffe405ab1&biw=1067&bih=562
Hope that helps.