There is another key that needs to be set on the filetype in the Registry. The old way worked for me. The registry script is set up to set all of these keys. Do I think programmers that invent a new text based filetype for their apps should set these keys? You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email.
For this article I'm going to add. You only have to create two new string values and fill in their data in addition to that to get preview working for custom file types in Windows 7. Since I'm trying to add a plain text file type to the preview pane I can take a file type that I know previews correctly say.
Those values being named "Content Type" and "Perceived Type" respectively. Report abuse. Details required :. Cancel Submit. Previous Next. Hello, Thank you for posting your query in Microsoft Community.
However, let me ask you a few questions to understand the issue better and assist you accordingly; Are these. If they show up, do you receive any error message while trying to access those files? Are you able to view and access other files through Windows Explorer preview pane without any issue?
When was the last time these files showed up fine? Do you remember making any specific change in the computer prior to the issue? How to include a screenshot in your post Kindly revert with more information in order to assist you better. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site.
In reply to A. User's post on February 25, YES If they show up, do you receive any error message while trying to access those files? No problem accessing or viewing any files. Problem only with viewing preview in the Win Expl preview pane. Message "No preview available" appears in prev pane. How to include a screenshot in your post My replies in the body of your quoted letter In reply to janje's post on February 25, Please explain how this solution works.
I ran the utility, but it said it is for Windows Vista only. Can you share the source code? And given your expertise, would you be willing to give a stab at answering this question? The author is here: winhelponline. Show 1 more comment. Adding Preview File Types The Easy Way Now that we know how it all works or not, as you probably skipped down to this part , you can use the free PreviewConfig utility for Windows Vista, which is just extremely simple to use.
Following those instructons and modifying it for what I'm actually trying to do didn't work. I downloaded the previewconfig program mentioned there and ran it as administrator and when I try to change the preview type for. Sign up or log in Sign up using Google. Sign up using Facebook.
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