NacreHis is the executable file of the LENSAM Door-Lock Software. Unfortunately, you can't acquire a new copy of the CD because there isn't an online resource available for this purpose. Also, the program seems to be discontinued and no longer supported. You can try finding a copy on Amazon, eBay, or other similar websites. Also, you can get in touch with the developer using
86-577-8892-3221 phone number.