In a private email, W4TV informed me that Writelog does NOT support LPT on 64 bit systems. Joe is very knowledgeable about these things, so I consider his answer definitive. Windows 7 x 64 definitely DOES support LPT ports, and so does N1MM Logger running on those systems. Many thanks for considering the question. Dave Hachadorian, K6LL Yuma, Arizona .