Thanks AmatCoder. The BOINC extension is an important addition to TCL, especially since the BOINC developers don't seem to try for Linux compatibility beyond Ubuntu. We don't all use that.
FWIW, BOINC on my PC has been chugging away for almost two weeks, and has successfully processed a number of seti@home work units. There are several other projects available through the BOINC site as well. Hopefully something to interest a lot of TCL users.