Avoid suspicious .IDX , .LIB , or .HEX files from unknown sites – they can crash Proteus or contain malware.

C:\Program Data\Labcenter Electronics\Proteus 8 Professional\Data\LIBRARY Paste Files: Copy both the files into the directory mentioned above. Restart Proteus: Close and reopen the software to refresh the database. Import (Proteus 8.12+): You can also use the Library > Import Parts menu to select the downloaded model file directly. Technical Specifications HT12E (Encoder):

Do NOT download from: