The open and save dialogs in Windows have the nasty habit of not remembering any of the changes that you made while using them. I prefer a wider window to be able to read all filenames, navigate more easily through the folder structure and have more details in sight all the time.
Unfortunately though, Microsoft did not think of this feature and resets the open and save window every time. Open Wide is a software that makes all those dreams come true. It can customize the open and save dialog windows permanently with settings of your choice.
You can basically set a width and height for the open and save dialog box plus the position it should appear at. It is furthermore possible to define the cursor focus which can be set to filename, filetype, directory listing, look in and Places Bar.
Last but not least the View Mode can be defined. If you prefer a detailed view – like I do – you can set it to that or change it to any other mode available in Windows.

Read More:
Open Wide Homepage
via The How-To Geek
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Thanks a lot!
I’ve been hating on the open-save dialog window for years!!
What a great program!
try tweakui to midify the places list left
much better modification i think
I agree with Timo: instead of tweakui there’s Placebar Constructor only to modify the places on the left.
Try multienhancer – A software that does the same ( and some more).
link:http://www.softpedia.com/get/System/OS-Enhancements/Windows-MultiEnhancer.shtml