I'm pretty sure the ClassPath is set to include
/web/{server}/www/webmail/java
(where "{server}" is of course the literal name of my server). I'm also fairly certain the classes have been compiled. I'm not
entirely certain that the classes were
last compiled with the appropriate JDK in the CLASSPATH, since I've been moving around from JDK to JDK in an attempt to find something that works. So, I'll check that tonight, and/or just try recompiling everything with Blackdown v3 JDK. (Obviously, I'll also doublecheck ClassPath, in nsd.tcl.)
Again, thanks much for your assistance, Dan.