Users interested in 64-bit photoshop plugins generally download:
PhotoFreebies is a collection of free plugins for performing useful photo manipulations and effects like sepia effects, saturation gradients, b/w conversion,...
Additional suggestions for 64-bit photoshop plugins by our robot:
32bit to 64bit Plugin Bridge...bit, Photoshop-compatible...supports Photoshop-compatible
This free tool can make windows automatically align next to each other.