In article ,
"Nicolas Tade" wrote:
What has been disabled?
I was talking about previewing them in the native microsoft windows explorer...
Correct.
Microsoft Explorer does not actually do the previewing. What actually happens, deep under the hood of your operating system, is that Microsoft Explorer says "Aha, this is a JPEG...let me see, a JPEG is a picture, so I will look for a .dll that can read this picture and give me back a thumbnail, and then i will show a thumbnal. Okay, let's see...this is a ..PSD, a .PSD is a picture, so i will now search for a .dll that can read this .PSD and then give me back a thumbnail..."
The problem is that for large images, especially large complex images, the process of starting the .dll, reading the picture, creating the thumbnail, and handing the thumbnail back to Explorer can be extremely time-intensive.
It LOOKS like Explorer is creating and displaying the thumbnails, but that is not actually what is happening. It is up to the host app to create thumbnails for images in formats not natively supported by the Windows libraries; in the case of a .PSD, that means it's up to Photoshop. You might not know that a part of Photoshop is running, loading the picture into memory, and creating a thumbnail for you every time you use Windows Explorer to open a folder full of Photoshop files, but that is exactly what's happening.
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