# Add LTspice IV library to LTspice XVII

I have an external library which works fine for LTspice IV. To add this external library, I simply overwrote (added) the corresponding files in the lib folder in the installation directory. Hence, I have a lib folder of the following structure:

lib:
- cmp
|-standard.dio
- sub
|-myPart.mod
- sym
|-Misc
|-myPart.asy


When I do the same in LTspice XVII, it doesn't work. This means, that if I open a schematics which uses myPart the error message "Couldn't find symbol(s): myPart" pops up. I also can't find this part in the "Component browser" in LTspice XVII but it is available in LTspice VI.

How can I add this library in the XVII version?

• XVII uses custom paths, you should make use of them, otherwise you may run into problems when you'll want to send the schematic to someone else. The best way, but the most cumbersome, would be to copy both library(s) and symbol(s) to whatever folder your schematic/project/etc resides in. – a concerned citizen Jan 8 at 20:57