: Extract your downloaded zip file and copy the .LIB and .IDX files directly into this LIBRARY folder.
To work with the HT12E and HT12D encoder and decoder pairs in Proteus for simulation purposes, you typically need to ensure that you have the appropriate library files installed. The HT12E is an encoder, and the HT12D is a decoder, both commonly used in remote control systems. ht12e and ht12d proteus library file download link