Hello, Thank you for downloading a copy of the COMO program. The gzipped tar file contains the program executables (for SGI Irix 6.3 or 6.5, and RedHat Linux 7.0) and a test case. The program documentation is available online, through my web site (http://como.bio.columbia.edu/tong). I would appreciate any comments, suggestions, and especially bug reports from the users. Best wishes Liang ltong@columbia.edu