Knowledge Base
CBFS Filter Articles
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How do I protect directory contents from modifications?
How do I protect directory contents from modifications?
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Can you provide a WHQL-certified version of the driver?
Can you provide a WHQL-certified version of the driver?
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Why are On*CloseFile events fired long after the file is actually closed?
The reasons why you can observe delayed closing of a file
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What's New in CBFS Filter 2020
CBFS Filter 2020 Upgrades and Migration Guide
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How can I create a file in a directory protected with a read-only access rule?
How can I create a file in a directory protected with a read-only access rule?
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How can I make a directory read-only, but have its subdirectories be read-write?
How to enforce read-only access on a directory, but not its subdirectories.
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Why doesn't my application receive events for mapped network drives?
Discusses why filesystem operations for mapped network drives don
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Is there any integrity check to validate which process is using CBFS Filter?
Is there any integrity check to validate which process is using CBFS Filter?
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Does the driver need to be reinstalled each time the computer reboots?
How often the driver needs to be reinstalled.
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How do I track file copying?
How do I track file copying?
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How do I know which user initiated a filesystem event?
How do I know which user initiated a filesystem event?
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In some cases I get a filename in ALL CAPS. What's wrong?
In some cases I get a filename in ALL CAPS. What's wrong?
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How can I monitor the files in a directory, but not its subdirectories?
How to monitor the files in a directory but not its subdirectories.
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I get a BSOD with the error code NO_MORE_IRP_STACK_LOCATIONS (35). What's that?
I get a BSOD with the error code NO_MORE_IRP_STACK_LOCATIONS (35). What's that?
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How can I hide a directory?
How to hide a directory
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Can I create files and directories that don't really exist on disk using CBFS Filter?
How to create virtual files and directories using CBFS Filter.
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How can I attach the filter to a USB drive?
How can I attach the filter to a USB drive?
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The OS caches the data read from a file after it's been decrypted by CBFS Filter. How do I prevent this?
The OS caches the data read from a file after it's been decrypted by CBFS Filter. How do I prevent this?
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I need to monitor file operations on a server. Is this possible with CBFS Filter?
Discusses feasibility of monitoring remote file operations.
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Is CBFS Filter a minifilter driver?
Is CBFS Filter a minifilter driver?
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Can I use the GetOriginator* methods in the Notify* events?
Discusses whether the GetOriginator* methods can be called during the Notify* events.
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Is it possible to create nested virtual directories?
Is it possible to create nested virtual directories?
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Is it possible for a "real" file to reside in a virtual directory?
Can a "real" file be created in, or moved to, a virtual directory?
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FileSystemWatcher and ReadDirectoryChangesW vs. CBFS Filter
CBFS Filter enables you to emulate FileSystemWatcher, and much more.
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How can I use CBProcess to prevent a process from being started?
Using CBProcess to prevent a process from starting.
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How do I prevent file deletion using filter rules?
How do I prevent file deletion using filter rules?