If you still haven’t ditched Windows XP – and really, you should – you might be interested to know that some generous souls on the Internet have compiled what is essentially a new service pack for the antiquated operating system.
It’s a compilation of various hotfixes and updates that have been released since SP3, including some for .NET. While Microsoft officially stopped rolling out updates for XP back in April of this year, they are continuing to support their POSReady systems which are compatible with the XP base. This new patch includes a hack which will allow POSReady updates to be installed indefinitely.
The good news is that it can be applied on installs that are still running SP1, but this comes at the price of a much beefier download: 827MB for the whole package. You can get it here, but it would be irresponsible of us not to issue the disclaimer that upgrading your OS is better than hacking an old, unsupported one. Have fun, but use at your own risk.