tar -tf X:path\archive.tar
will issue the error "function not implemented". As a
workaround, you have to run:
tar -tf path\archive.tar
This is problematic when you don't call tar manually,
but when a script is given a full filename (with drive
& path) and cannot handle it.
I understand the problem stems from TAR being a UNIX
program where drive letters don't exist.
PROPOSITION: Couldn't a option switch be introduced
that allows TAR to decide whether X: means a hostname
or a drive letter? Even better, for hostnames, make TAR
recognise Windows' \hostname\path\archive.tar syntax.