Activation rule flushes - seems to be reliable. Needs testing on other environments.

admin/woocommerce-admin-init.php

@@ -63,9 +63,6 @@ function woocommerce_admin_installed_notice() {
 	</div>
 	<?php
 	
-	// Flush rules after install
-	flush_rewrite_rules( false );
-	
 	// Set installed option
 	update_option('woocommerce_installed', 0);
 }

admin/woocommerce-admin-install.php

@@ -19,6 +19,11 @@ function do_install_woocommerce() {
 	woocommerce_default_options();
 	woocommerce_tables_install();
 	woocommerce_install_custom_fields();
+	
+	// Register post types
+	$woocommerce->init_taxonomy();
+
+	// Add default taxonomies
 	woocommerce_default_taxonomies();
 	
 	// Install folder for uploading files and prevent hotlinking
@@ -45,9 +50,6 @@ function do_install_woocommerce() {
 	
 	// Update version
 	update_option( "woocommerce_db_version", $woocommerce->version );
-	
-	// Flush rewrites
-	flush_rewrite_rules( false );
 }
 
 /**
@@ -286,27 +288,6 @@ function woocommerce_tables_install() {
  */
 function woocommerce_default_taxonomies() {
 	
-	if (!post_type_exists('product')) :
-		register_post_type('product',
-			array(
-				'public' => true,
-				'show_ui' => true,
-				'capability_type' => 'post',
-				'publicly_queryable' => true,
-				'exclude_from_search' => false,
-				'hierarchical' => true,
-				'query_var' => true,			
-				'supports' => array( 'title', 'editor', 'excerpt', 'thumbnail', 'comments' ),
-				'show_in_nav_menus' => false,
-			)
-		);
-	endif;
-	
-	if (!taxonomy_exists('product_type')) :
-		register_taxonomy( 'product_type', array('post', 'product'));
-		register_taxonomy( 'shop_order_status', array('post', 'product'));
-	endif;
-	
 	$product_types = array(
 		'simple',
 		'grouped',

admin/woocommerce-admin-settings.php

@@ -1033,6 +1033,8 @@ function woocommerce_settings() {
 		
 		wp_redirect( add_query_arg( 'subtab', esc_attr(str_replace('#', '', $_POST['subtab'])), add_query_arg( 'saved', 'true', admin_url( 'admin.php?page=woocommerce&tab=' . $current_tab ) )) );
 		
+		exit;
+		
 	}
     
     // Settings saved message

readme.txt

@@ -90,6 +90,8 @@ Yes you can! Join in on our GitHub repository :) https://github.com/woothemes/wo
 * Fix for reducing/increasing stock notifications
 * Don't reset shipping method on cart during every update
 * Method availability (country) for local pickup/delivery
+* Fixed permalinks in shortcodes
+* Install process tweaks (for flushing post type rules)
 
 = 1.4.3 - 16/02/2012 = 
 * Fix for variation shipping class detection

woocommerce.php

@@ -257,6 +257,7 @@ class Woocommerce {
 	 **/
 	function install() {
 		register_activation_hook( __FILE__, 'activate_woocommerce' );
+		register_activation_hook( __FILE__, 'flush_rewrite_rules' );
 		if ( get_option('woocommerce_db_version') != $this->version ) : add_action('init', 'install_woocommerce', 0); endif;
 	}
 	
@@ -441,6 +442,8 @@ class Woocommerce {
 	 **/
 	function init_taxonomy() {
 		
+		if (post_type_exists('product')) return;
+		
 		/**
 		 * Slugs
 		 **/