I tried to compile aolserver-3.4.2 on win32. The file thread/tcl8x.c was missing, however, I was able to build aolserver-3.3.1 without any problems.
I got the 3.4.2 source from: ftp://ftp.aolserver.com/aolserver/aolserver-3.4.2-src.tar.gz --Tom Jackson
