Thomas, Sorry about the lack of instructions for DBOPEN. It's pretty simple. Just build dbopen and install dbopen in one of the usual places, preferable the lib where the system libs are and the includes in the system includes. To enable it, edit tcl7.3/tclX7.3b/Config.mk. Add to XCFLAGS line "-DTCL_DBOPEN" You'll need tclXdb.c to be rebuilt, so you should remove tclX7.3b/src/tclXdb.o, then remake. If you don't put the dbopen library in the usual place, on the XLDFLAGS add -L/directory/where/the/lib/is and if the dbopen includes aren't in the usual place, add -I/directory/where/the/includes/are to the XLDFLAGS as well.