D7 Browser Installation on Windows failed Error: Call to undefined function _flag_abuse_abuse_node_flags()

PHP Fatal error: Call to undefined function _flag_abuse_abuse_node_flags()

Eventually tracked it down - when unpacking the tar of flag_abuse module 7.x-2.0-alpha1 created a file in includes directory called flag_abuse.flag_default.inc0000644 instead of flag_abuse.flag_default.inc renaming file to correct name solves the problem.

Have seen this reported as a Winzip bug http://drupal.org/node/590192 but thought I'd share in case anyone else has this problem.