I don't want to copy all of my pictures and i dont want to setup ongoing sync. I simply want to do a one time transfer of pictures in a certain folder from my windows PC to iPad
This TC Geeks article describes several ways to access files on your iPad, using FTP or Bluetooth. You'll need an FTP server- or server-capable app on the PC side; there are many. The article is old - check current prices. The first iPad app described is currently (9/1/12) available at a hefty discount, f/ex.