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I found this question/solution related to programming OneDrive like extension:

Creating a special folder in Windows Explorer like DropBox or OneDrive

Is it possible to do it in a way that files don't use up local disk space (like they do in OneDrive)? So to have them displayed just by syncing headers/properties and actually downloading the whole file from the cloud when user wants to read/edit it?

*goal: a cloud (shared drive) solution with several TBs in capacity. If files were to be synced then it's no use on laptops (limitation with SSD size)...

Cœur
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TheMixy
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  • Yes it's possible, but almost not documented. Have a look at this product who exposes two Windows low level APIs: "Files On Demand" and "ProjFS" (Projected File System, used by Microsoft to connect to huge++ github repos): https://www.shellboost.com/Doc/Introduction/Files-On-Demand (disclaimer: I work for the company who sells them). Note that AFAIK dropbox doesn't uses these API, only OneDrive as of today. – Simon Mourier Nov 22 '18 at 08:14
  • thank you. Are there any open source solutions? – TheMixy Nov 25 '18 at 13:41
  • Not that I know of. And as of today, this is also the only commercial product that has this :-) – Simon Mourier Nov 25 '18 at 14:01

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