Not just dhcpd. Besides the entire existance of Wine and Samba, Qemu has a workaround for win2k. Mkudffs has a workaround for MS-Windows not being able to read the filesystem without an mbr. Libc can work with local system time for those who dual-boot. Git can work around the difference in line endings. There are probably more of these kludges than you can shake a stick at.