.arw thumbnails won't open in explorer

I am having problems trying to get raw sony files to register as
thumbnails in explorer. i have tried all the usual things e.g. Folder
options always show thumbnils never icons etc. Been to sony download
page and downloaded latest sony driver. tried a variety of open with
various programme options. raw files open in all my applications but
not in explorer would appreciate some help pleases.


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S1lverfox