Slow TIFF Performance in Windows 7

Some FastPictureViewer Professional users have been experiencing excruciatingly slow performance when displaying certain TIFF files. The issue was in the Microsoft TIFF codec that ships with the operating system and Microsoft now fixed it. The fix also cures Windows Explorer hangs when opening folders containing some of those TIFFs. The correction will be part of Windows 7 SP2 and is currently available as a hotfix. See the Knowledge Base article http://support.microsoft.com/kb/2619291/. The Hotfix request pages is here: http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=2619291