Any update on this? Speaking for myself, the most desirable features to get working in x64 are the Property and Column Handlers.
It's almost ready. The info tip handler (to show file metadata in the balloon tips), the context menu handler (files right click menu to access the pdf tools), drop handler (that provide the merge, or attach, on file(s) drop) and the property handler, are now also up and running in the 64-bit Shell.
Only left the property sheet and column handlers. But equivalent functionality of the property sheets is provided by the property handler, and the 64-bit column handler is only needed for XP and W2K3 64-bit editions (column handlers have been replaced by the property handler in Vista and newest Windows), so probably I'm not going to develop these ones, at least for now.
A second question relates to the IFilter indexing. Will the pdf fields be indexed? How about the custom properties?
If the IFilter you are using also access the PDF standard metadata, and custom, fields, yes. The custom fields are saved in the PDF file following the PDF file format specifications, so it's just a question of the installed IFilter access these fields, or not.
But the Windows Search service also uses the file property handlers to index all the exposed file, and enabled for indexation, properties. The PDF-ShellTools property handler provide indexation access to all the standard PDF fields, and PDF-ShellTools defined custom fields.
I've installed the 64 bit IFilter from Foxit.
Never tested, but from this IFilter features page I see it only provide access to the standard title, author, subject, and keywords fields.
PS: If you want another developer to beta test I'm your guy...
Usually I only provide access to test, and beta, versions to licensed users. If that's your case, just drop me a line and I will be pleased to provide you access to test versions, when available.
