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Posted: 05/02/2008 02:16:16
by Volodymyr Zinin (Team)

I think the problem isn't in CallbackFS at all. There are a lot of things that can influence on Word behavior. The most significant is type of virtual storage (that is specified by StorageType and StorageCharacteristics properties). You can try to change these parameters (for example remove scRemovableMedia if it's set).

Also the current CallbackFS virtual storage support doesn't fully mimic Windows storages. Perhaps the problem is in it. We plan to correct it in a few months.
Posted: 05/13/2008 13:26:00
by Volodymyr Zinin (Team)

Vijay Mani wrote:
Also is it by design that CBFS openfile call back doesn't pass an open-mode? It makes sense that if it's an OS/explorer open Vs app open we could open with different access flags.


We have released the v2.0. And the OnCreate/OnOpen events there contain the DesiredAccess and ShareMode parameters.
Posted: 05/13/2008 13:38:17
by Eugene Mayevski (Team)

Correction: currently this is Release Candidate 1.

Sincerely yours
Eugene Mayevski
Posted: 06/26/2008 20:18:03
by Vijay Mani (Standard support level)
Joined: 03/09/2008
Posts: 29

Eugene Mayevski wrote:
are working on a workaround for this Explorer problem now. There exists a workaround that you can implement in your code, but it looks like we will have to create a couple of supplementary drivers to have this workaround right in our driver.

Hey Eugene,
Can you let me know a little bit about this work-around? We're trying to see if there is a way to disable explorer.exe from reading all the file contents just upon listing a directory. (Looks like it reads the full contents for images and has wierd access pattern for documents(i.e it's reading more than just metadata). It would be nice to just disable this.

Posted: 06/30/2008 09:32:24
by Volodymyr Zinin (Team)

You can use the network type of mounting points. It decreases quantity of requests that Explorer does.
Also start caching files locally at the time when they are opened (sure only if DesiredAccess allows reading) and quickly satisfy read-requests from the cache.



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