Not exactly, this just is a rewrite for a query string. I use that whenever a parameter changes.
This is a little more shorthanded than i used, so thanks anyway, learned something again:-).
Below are the rewrite rules i am using on the working (live!) evolution website:
# For Friendly URLs
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^samepath/(.*)/(.*)\.html$ differentpathtoresource.html?variable=$1&alias=$2 [L]
RewriteRule ^mailing/(.*)/(.*)\.html$ adifferentpath.html?differentvariable=$1&alias=$2 [L]
RewriteRule ^path/(.*)\.html$ path.html?variable=$1 [L]
RewriteRule ^(.*)\.html$ index.php?q=$1 [L,QSA]
RewriteRule ^(.*)\.xml$ index.php?q=$1.xml [L,QSA]
