File extension db

File with extension db can be a part of thumbnail cache created by following applications:

Adobe Photoshop Lightroom Adobe Photoshop Lightroom © Adobe Systems Incorporated
Artensoft Photo Editor Artensoft Photo Editor © Artensoft
Directory Opus Directory Opus © GPSoftware
FastStone Image Viewer FastStone Image Viewer © FastStone Soft
HP Photosmart Essential HP Photosmart Essential © Hewlett-Packard Co.
IDimager IDimager © IDimager Systems, Inc
MediaImpression MediaImpression © ArcSoft Inc.
Microsoft Picture It! Microsoft Picture It! © Microsoft
Nokia PC Suite Nokia PC Suite © Nokia
Photo Commander Photo Commander © Ashampoo
Photo Go Photo Go © Sony Creative Software Inc.
Photo Manager 2008 Photo Manager 2008 © Proxima Software
PhotoScape PhotoScape © MOOII TECH
Picasa 2 Picasa 2 © Google, Inc.
Picasa 3 Picasa 3 © Google, Inc.
Regards Regards © Figuinha Jacques
Samsung New PC Studio Samsung New PC Studio © Samsung
Total Commander Total Commander © Christian Ghisler
Unknown application (PCM.db) Unknown application (PCM.db)
Viewer2 Viewer2 © Viewer2 Development Team
Windows (IconCache.db) Windows (IconCache.db) © Microsoft
Windows (thumbs.db) Windows (thumbs.db) © Microsoft
Windows 7 Windows 7 © Microsoft
Windows Live Photo Gallery Windows Live Photo Gallery © Microsoft
Windows Media Center Windows Media Center © Microsoft
Windows Vista Windows Vista © Microsoft
WinNc WinNc © Dunes MulitMedia, Inc.
WS_FTP WS_FTP © Ipswitch, Inc
XnView XnView © Pierre-e Gougelet

See also:

How to open and view db-file