File Preview

The file preview allows you to display different file types directly in the search result:

AllDup find duplicate files

The file preview can be shown and hidden via the toolbar or menu bar.

Plugin lists

The file extensions at a Plugin list can be selected or unselected by clicking on the checkbox in front of them. Using the right mouse button at a Plugin list will show up a context menu with the following commands:

Add
Adds a new file extension to the Plugin list.
Remove
Removes a file extension from the Plugin list.
Select all
Selects all file extensions at the Plugin list.
Deselect all
Deselects all file extensions at the Plugin list.
Default values
Clears the list and adds the default file extensions for this Plugin to the list.

Plugin: Windows WordPad

With this Plugin you can view all files at the file preview pane that are supported by Microsoft WordPad or any file with text content inside. For example, files with the following extensions can be viewed with this Plugin:

TXT, BAT, INI, LOG, CFG, DIZ, NFO, CSS, ASP, PHP, RTF, WRI, XML, INF, URL, REG, LST, EML, ERR, CSV, 1ST, VBS, ...

Plugin: Windows Internet Explorer

With this Plugin you can view all files at the file preview pane that are supported by the Windows Internet Explorer. This Plugin requires an existing installation of the Windows Internet Explorer. For example, files with the following extensions can be viewed with this Plugin at the file preview pane:

BMP, CAB, DIB, EMF, GIF, ICO, PNG, BMP, JPEG, JPG, HTM, HTML, PDF¹, DOC², DOCX², XLS², XLSX², PPT², PPS², SVG, SWF, TXT, WMF and ZIP

¹ requires the installation of a PDF Reader
² requires the installation of Microsoft Office

Plugin: Image Viewer

With this Plugin you can view all image files with the following extensions at the file preview pane:

3FR, ARW, BMP, CR2, CRW, CUT, DCR, DIB, DNG, EMF, ERF, GIF, HDP, HEIC¹, HEIF¹, ICO, IFF, J2C, J2K, JP2, JPE, JPG, JPEG, JPX, JFIF, KDC, MDC, MEF, MOS, MRW, NEF, ORF, PEF, PBM, PCX, PGM, PNG, PPM, PSD, RAF, RAS, RAW, RW2, SRW, TGA, TIF, TIFF, RAS, RLE, WBMP, WEBP, WMF and X3F.

¹ An HEIC/HEIF image extension (e.g. CopyTrans HEIC) must be installed for these file types if the files cannot be displayed as a preview or thumbnail using Windows Explorer.

Plugin: VLC Media Player

With this Plugin you can view all audio and video files that are supported by the VLC Media Player at the file preview pane. For example, files with the following extensions can be viewed with this Plugin at the file preview pane:

3G2, 3GA, 3GP, 3GP2, 3GPP, 669, A52, AAC, AC3, ADT, ADTS, AU, AIF, AIFC, AIFF, AMR, AMV, AOB, APE, ASF, ASX, AU, AVI, BIK, CAF, DIVX, DRC, DTS, DV, DVR-MS, EVO, F4V, FLAC, FLV, GVI, GXF, IT, M1V, M2T, M2TS, M2V, M4A, M4P, M4V, MID, MKA, MKV, MLP, MOD, MOV, MP1, MP2, MP2V, MP3, MP4, MP4V, MPA, MPC, MPE, MPEG, MPEG1, MPEG2, MPEG4, MPG, MPGA, MPV2, MTS, MTV, MXF, NSV, NUV, OGA, OGG, OGM, OGV, OGX, OMA, OPUS, QCP, RA, REC, RM, RMI, RMVB, RPL, S3M, SDP, SND, SPX, THP, TOD, TP, TS, TTA, TTS, VOB, VOC, VQF, VRO, W64, WAV, WEBM, WMA, WMV, WTV, WV, XA, XESC and XM.

This Plugin requires the 32-bit version of the freeware VLC Media Player version 3 or higher. The 32-bit version of the VLC Media Player must be either installed at your Windows system, available as a portable edition on your Windows system or manually integrated into AllDup's installation folder.

Using the portable edition of the VLC Media Player:

Register the file axvlc.dll from inside the folder of the VLC Media Player at your Windows system using the following command: regsvr32.exe axvlc.dll

Manual integration of the VLC Media Player:

Open the FTP archive at the official website of the VLC Media Player.
Scroll down to the end of the FTP archive, click on the folder with the latest version number (e.g. "3.0.16") and then click on the folder "32bit".
Download the file with the "zip" extension (e.g. "vlc-3.0.16-win32.zip").
Extract the following files and folders from the ZIP file into the folder of AllDup:
- files: axvlc.dll, libvlc.dll, libvlccore.dll
- folder: plugins
Run AllDup with admin rights once to register the file axvlc.dll at your Windows system automatically or register the file axvlc.dll at your Windows system manually using the command: regsvr32.exe axvlc.dll

Plugin: Windows Media Player

With this Plugin you can view all audio and video files at the file preview pane that are supported by the Windows Media Player. This Plugin requires the installation of the Windows Media Player. For example, files with the following extensions can be viewed with this Plugin at the file preview pane:

AU, AIF, AIFC, AIFF, ASF, AVI, M1V, MID, MIDI, MOV, MP4, MP3, MPEG, MPG, MP2, MPA, MPE, RMI, SND, WAV, WM, WMA, WMV, ...

Plugin: EXIF Viewer

With this Plugin you can view the EXIF data of files with the following extensions at the file preview pane: JPEG, JPG, TIF, TIFF, PNG, GIF und WAV. You can activate the Plugin at the toolbar File Preview using the button EXIF Viewer.

Plugin: Media Info Viewer

With the Plugin MediaInfo you can view technical information about media files, as well as tag information for many audio and video files. You can activate the Plugin at the toolbar File Preview using the button Media Info Viewer.