I don't have access to XP, but I modified the menu entry in the Windows program list of a Windows 7 client to include these options:

-rescan -checkblocks=0 -checklevel=4

The last two options don't take long to run against the Nanotoken blockchain at the size that it is now. They would take much time when it grows to the size of bitcoin's. If you trust the nodes in your peer list, you can leave them out.
In the Windows programs list, I select and right click on the Nanotoken client.  I go to the Shortcut tab, then edit the Target option so that it looks like this:

"C:\Program Files (x86)\nanotoken\nano-qt.exe" -server -checkblocks=0 -checklevel=4 -conf="$PATHNAME\nanotoken.conf" -rescan

$PATHNAME in my example is the full Windows directory path to where I store the configuration file.  I quote it because part of the path contains spaces.  I needed the -server option to accept connections from solo mining clients.