[MTUSUPPORT]

Stefan,
You just purchased a copy of Hoster Lite, so you need to Use that Registration code in the Original Field to install your new software. You were typing in your Hoster RegCode which is a different product than Hoster Lite.

Here is the Error that it gave me:

Error: The Registration Code you entered is for a different product. Please find your download instructions email for the product you are installing and enter the Registration Code for that product. Click OK to close this message, then click the Back button and enter the correct Registration Code for this product.