500 Internal Server Error on Localhost for Web.Developer Server Suite was pissing me off for a long time. The Apache error logs shows “RewriteEngine not allowed here”. Deleting .htaccess would fix the problem, but here is the fix. It’s a problem with mod_rewrite module and Apache’s AllowOverride configuration. Here’s how to fix it :
Firstly, make sure LoadModule rewrite_module modules/mod_rewrite.so is enabled in httpd.conf (Remove # before the line to enable)
Then, edit httpd.conf .. Find out the foll lines and mod -
<Directory “/www/vhosts/localhost”> #replace this with your dir name
Options Indexes FollowSymLinks
Order allow,deny
Allow from all
AllowOverride All #Added
</Directory>
<Directory />
Options FollowSymLinks
# AllowOverride Limit #Old Value
AllowOverride All #Added
Order deny,allow
Deny from all
Satisfy all
</Directory>
Web Developer adds a menu and a toolbar with various web developer tools. It’s highly recommended for any Web Developer..

Some Options are :
- Resize Firefox Window : See what your website looks like in 1024×768 or 800×600 at the click of a button
- View HTTP Headers
- View CSS Styles of page being viewed
- CSS HACK : Modify CSS in real time for any site you are viewing
- Reveal Form Passwords, Hidden Forms
- Cookies : Disable, clear, add, delete domain cookies, clear session cookies
- Disable Java, disable JS
- View Lotsa information regarding page
- Validate code
- View Source , Generated source .. ..
INSTALL NOW
Visit Addon page on Firefox Add-ons
XP SP2 limits teh number of TCP Connections to maximum of 10. This is supposed to slow down virus multiplication as their (of many) strategy of viral growth is to connect to a high amount of IPs. This could also limit the max simultaneous connections needed for Torrent downloads..
First, download the Patch for changing max TCP connections from here [ EventID 4226 Patcher Version 2.23d-english]. Change the value to a value between 50-100..
Next, uTorrent: Options > Preferences > Advanced options > net.max_halfopen and increase it from 10 to a decent value like 80..
