> my main patch, in pd 0.42 i can send the message "; pd open mytool.pd > tools/", then "mytool.pd" opens. but doesn't work in pd 0.43 > > This does not work for me in both Pd-extended 0.42.5 and 0.43.4. Attached > is my test patch: yes, in fact it doesn't work for me either. strange, in another patch it works. maybe roman is right about where pd is started.