Virtue Mart Session fix

Changes to be made:

administrator/index2.php
BEFORE
########
103 doGzip();
104
105 // if task action is 'save' or 'apply' redo session check
106 if ( $task == 'save' || $task == 'apply' ) {
107 $mainframe->initSessionAdmin( $option, '' );
108 }
#########


AFTER
########
102 // if task action is 'save' or 'apply' redo session check
103 if ( $task == 'save' || $task == 'apply' ) {
104 $mainframe->initSessionAdmin( $option, '' );
105 }
106 doGzip();
########

Using ISAPI 3.0 over IIS 6.0 for rewriting URL to Search Engine Friendly URL, I experienced this problem that links return 404 error when clicking any links on joomla. After googling for 3 hours, I found the right solution, which requires to hack the code.

.htaacess code
RewriteCond %{REQUEST_URI} ^(/component/option,com) [NC,OR] ##optional - see notes##
RewriteCond %{REQUEST_URI} (/|\.htm|\.php|\.html|/[^.]*)$ [NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule (.*) index.php

at /components/com_sef/sef.php
// IIS patch.
if (isset($_SERVER['HTTP_X_REWRITE_URL'])) {
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
}

I append this code over sef.php by the way I'm using the component sh404SEF which I guess is the best for joomla I have tried OpenSEF (this component I guess is not continue for development) and ArtioSEF.