johnstevenson/composer-setup — pull request #15 by hakre (2013-01-22 01:34:29+00:00)
Title: Remove Composer from PATH environment variable

This fixes reported issue #8. Composer uninstaller did remove the bin
directory from the %Path% variable on the usPostUninstall
CurUninstallStepChanged. That was too late.

This fix moves it to the usUninstall step and allows to override the
directory existance check.