For those hitting this from Google, the new (as of October 2018) location for the january 2007 MSDN magazine containing the article "View Data Your Way With Our Managed Preview Handler Framework" is now http://download.microsoft.com/download/3/A/7/3A7FA450-1F33-41F7-9E6D-3AA95B5A6AEA/MSDNMagazineJanuary2007en-us.chm, taken from https://msdn.microsoft.com/en-gb/magazine/mt668395
Also /q from above;
"Note: 2008 and older issues are only available as .chm files. On most versions of windows you must first save these files to your local machine, and then unblock the file in order to read it. To unblock a file, right click on it, and select properties, and then select the ‘unblock’ button. The content will then be available to read."
Within the .chm, the link to the actual .exe file still works, and is available here;
http://download.microsoft.com/download/f/2/7/f279e71e-efb0-4155-873d-5554a0608523/PreviewHandlers2007_01.exe
This is a simple "unpacker" and when run with Admin privileges it asks where to unpack the files to, to which I chose C:\temp.
Attempting to run the .msi installer inside the extracted folder, I hit the error "Rejected by Digital Signature Policy":

...and have had to give up as I'm in a managed environment.
I tried this on Windows 10, build 1803, x64 and hope it helps.