I would like to share a single COM (serial) port between two applications (DX4WIN and Writelog), so they can both have access to rig control. Jozef OM7ZZ sent me a link to a product from Eltima: http://www.eltima.com/products/serialsplitter/ This seems like a rather expensive solution (100ドル). Does anyone have direct experience with this or similar products before I go out and spend that kind of money? 73 - Jim AD1C -- Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863 USA +978-251-9933, <jjreisert at alum.mit.edu>, http://www.ad1c.us