I found this fix from Leo Davidson,
for PDF Handler not working in Outlook 2007 on Win7 64bit and it Works Great!
Frome Source Page
http://www.pretentiousname.com/adobe_pdf_x64_fix/
Download Fix
http://www.pretentiousname.com/adobe_pdf_x64_fix/Reader_x64_fixer_1001_source.zip
Alternate Download: (Without permission from Leo)
http://www.sbits.biz/PDFviewerfix/Reader_x64_fixer_1001.zip
Thanks Leo