I have made windows tool that can pack and unpack boot and recovery images.. whithout linux or cygwin.
for those strugglers who have slow internet. no linux.. cant download cygwin.
this is a windows tool.. purly written in VB6
it can pack and unpack boot.img with one click.
not a command line tool... i have added a nice GUI.
its version1.1 (beta).
if u find any bugs and repacked boot images not booting.. plz send bug reports here..
im planning to adding more features with bug fixes..
cooprate me.. and i will give u a nice tool.