File Type Filtering

You can configure File type filters for the Removable Storage Devices, Floppy Disk Drives, and DVD/CD Drives device class policies that limit access to certain file types.

After setting Read or Read and Write on the Permission Settings page of the Device Class Policy wizard, the File Filters option becomes available. Selecting it provides access to the File Filter Settings page, on which you can configure the file types that can be written to/read from connected devices.

On the File Filter Settings page you can:

• Allow all files types to be accessed.
• Allow only certain file types to be accessed, selectable from a list.

You can also specify the ways all or selected files can be copied.

Allow Import: User can copy files from the external device to the local hard drive.

Allow Export: User can copy files from the local hard drive to the external device.

If no filter is defined or the import/export options of the filter dialog are not activated, then even if some files are selected, the profiled permission applies to all type of files.

Warning: File type filtering rules cannot be combined with encrypt, decrypt, and bus-specific permissions inside the same rule. One permission cannot have both file type filtering defined and encrypt/decrypt/bus-specific options selected, but separate permissions can, and will be properly enforced.

If you combine the access settings, file filtering works as follows:

Permission Type	Example
Device access set to None	You are unable to define any file filter settings.
Device access set to Read	If you select MPEG Audio Stream Layer III in the File Type Filtering dialog then read access is allowed for .mp3 files.
Device access set to Read Write	If you select Microsoft Word in the File Type Filtering dialog then read-write access is allowed for .doc files.

When defining file filters, you cannot open files directly from the external device. You must first copy them to your system (or another authorized hard disk drive).

File Type Filtering Permissions

You can define different file filters for read or read-write permissions.
When applying file filters to a policy, you can use the following file type filtering options:

Permission Setting	Import-Export Settings	Result
Read	Allow Import	Allow file copy from device to the local HDD.
	Allow Export	Allow file copy from the local HDD to the device.
Read-Write	None	Filters are not enforced. The end result is like not defining filters at all.

If no filter is defined or the import/export options of the filter dialog are not activated, then even if some files are selected, the profiled permission applies to all type of files.

Warning: File type filtering rules cannot be combined with encrypt, decrypt, and bus-specific permissions inside the same rule. One permission cannot have both file type filtering defined and encrypt/decrypt/bus-specific options selected, but separate permissions can, and will be properly enforced.

If you combine the access settings, file filtering works as follows:

Permission Type	Example
Device access set to None	You are unable to define any file filter settings.
Device access set to Read	If you select MPEG Audio Stream Layer III in the File Type Filtering dialog then read access is allowed for .mp3 files.
Device access set to Read Write	If you select Microsoft Word in the File Type Filtering dialog then read-write access is allowed for .doc files.

When defining file filters, you cannot open files directly from the external device. You must first copy them to your system (or another authorized hard disk drive).

Available File Type Filters

The File Filters page in the Policy Wizard dialog allows you to select which file types can be read and transferred to or from a device.
The following table provides a full listing of the file types available in the File Filters page.

File Type Family	File Type
Microsoft Office	Microsoft Word	Microsoft Word Document Microsoft Word Document Template Microsoft Word Wizard
	Microsoft Excel	Microsoft Excel Worksheet Microsoft Excel Add-in Microsoft Excel Template
	Microsoft Visio	Microsoft Visio Drawing Microsoft Visio Stencil Microsoft Visio Template
	Microsoft PowerPoint	Microsoft PowerPoint Slideshow Microsoft PowerPoint Presentation Microsoft PowerPoint Template Microsoft PowerPoint Add-in
	Microsoft Graph	Microsoft Graph Chart
	Microsoft Project	Microsoft Project File
	Microsoft Access Database
Microsoft Office Open XML	Microsoft Office Open XML Word	Microsoft Office Open XML Word Document
	Microsoft Office Open XML Excel	Microsoft Office Open XML Excel Work Book
	Microsoft Office Open XML PowerPoint	Microsoft Office Open XML Presentation
Open Office	OpenOffice Writer	OpenOffice Text Document OpenOffice Text Template
	OpenOffice Math	OpenOffice Formula OpenOffice Formula Template
	OpenOffice Base	OpenOffice Data Base
	OpenOffice Calc	OpenOffice Spreadsheet OpenOffice Spreadsheet Template
	OpenOffice Draw	OpenOffice.org Graphics OpenOffice.org Graphics Template
	OpenOffice Impress	OpenOffice Presentation OpenOffice Presentation Template
Adobe Acrobat	Adobe Illustrator Vector Graphic
	Adobe Acrobat Portable Document Format
Archive	Zip Compressed Archive
	Protected Zip Compressed Archive
	PRIM'X ZED Compressed Archive
Executable	Executable
	Dynamic Link Library
Images	Microsoft Windows OS/2 Bitmap Graphics
	Joint Photographic Experts Group
	Graphics Interchange Format
	Tagged Image File Format
	Microsoft Windows Metafile
	Microsoft Windows Icon
	Microsoft Windows Cursor
	Enhanced Microsoft Windows Metafile Format
	Portable Network Graphic
Audio Video	Moving Picture and Associated Audio/Video for digital storage media	Moving Picture Experts Group MPEG Audio Stream Layer II MPEG Audio Stream Layer III
	Resource Interchange File Format	Windows Animated Cursor Audio Video Interleave Downloadable Sounds Musical Instrument Digital Interface DirectMusic Style WAVEform audio format Corel Vector Graphic Drawing
	Advanced Streaming Format Files	Microsoft Windows Media File Advanced Streaming Format Microsoft Windows Media Audio
	Standard MIDI File	Musical Instrument Digital Interface
	RealNetworks	RealMedia Streaming Media RealAudio Streaming Media
Markup Languages	Extensible Markup Language
Rich Edit Text	Rich Text Format
Microsoft Windows Setup	Microsoft Windows Installer File
	Microsoft Windows Installer Patch
	Microsoft Windows SDK Setup Transform Script