MinGW Open MSYS here

MSYS is a collection of GNU utilities such as bash, make, gawk and grep to allow building of applications and programs which depend on traditionally UNIX tools to be present. It is intended to supplement MinGW and the deficiencies of the cmd shell.

In order to get an Open MSYS here item in the windows explorer's context menu add the below to your registry

Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Directory\Background\shell\msys]
@="Open MSYS here"
[HKEY_CLASSES_ROOT\Directory\Background\shell\msys\command]
@="C:\\MinGW\\msys\\1.0\\bin\\bash.exe --login -c \"cd '%1' ; exec /bin/bash -rcfile ~/.bashrc\""
[HKEY_CLASSES_ROOT\Directory\shell\msys]
@="Open MSYS here"
[HKEY_CLASSES_ROOT\Directory\shell\msys\command]
@="C:\\MinGW\\msys\\1.0\\bin\\bash.exe --login -c \"cd '%1' ; exec /bin/bash -rcfile ~/.bashrc\""

You should now see MinGW Open MSYS here in your folder's context menu