SolarWindow Technologies, Inc. (WNDW)

[EricM]

Recieved by regular mail last week. Part of a shareholder update.
The date provided on this document is June 4, 2007
(page one of two).


Octillion Corp. Mr. Harmel S. Rayat Suite 216 - 1628 West 1 st Avenue Phone ' 800-213-0689 Vancouver, BC V6J IGI www.octillioncorr).com Octillion Achieves Breakthrough in Development of Transparent Windows Capable of Generating Electricity Vancouver, BC - June 4, 2007 - Octillion Corp. (Pink Sheets: OCTL) today announced that in early models of Octillion's transparent photovoltaic 'NanoPower Windows', scientists have successfully engineered and assembled a mechanically stable, see-through developmental prototype, which achieves optically active down-conversion and displays good electrical properties with no electrical shorts. "Our ability to produce a developmental prototype which remains see-through while displaying favorable electrical properties, marks a significant breakthrough in development of a working prototype of our'NanoPower Windows', capable of generating electricity from sunlight without losing significant transparency," explained Mr. Harmel S. Rayat, President and CEO of Octillion Corp. In developing an early model of the world's first transparent photovoltaic windows of its kind, Octillion researchers have successfully'stacked' silicon nanoparticies between ultra-thin films of metal, onto a glass substrate. Preliminary tests have shown that this stack is mechanically stable and of even thickness. Tests for optical characterization have demonstrated that the model is a high-quality see-through architecture, 111-1portant-tomaintainirigniaximumtransparencyoMe-ftnishedcommerc@Mproduct.@@---- Key to the development of Octillion's transparent NanoPower Windows is a proprietary spray coating of a silicon nanoparticle film, which is fluorescent and able to convert the sun's energy into electricity. The process of producing these silicon nanoparticles is supported by 10 issued US patents, 7 pending US patents, 2 issued foreign counterpart patents and 19 pending foreign counterpart patents. The proprietary process for spraying the particles onto glass surfaces is unique to Octillion, and is among the Company's major research achievements. In tests of the developmental prototype window, Octillion's silicon nanoparticle film was able to successfully convert high energy photons into lower energy photons, thus optimizing electrical conversion by preventing high energy photons from being unnecessarily wasted through conversion into heat. Above all, electrical characterization of the developmental prototype gave good electrical properties, with no shorts. "These exciting new findings mark a significant breakthrough in our science, which in recent months, has developed strong momentum based on a series of solid research findings. These successful outcomes have collectively propelled our early research program aggressively towards the product development path," concluded Mr. Rayat. Click here to review news regarding Octillion's achievement of major milestones: http://www.octillioncorc).com/OCTL 20070207.htmi See over for more