The description field in the SaveAs dialog should be much larger:
Fully agree - however this is Windows. We’re using the IFileDialogCustomize interface, the complete layout and sizing logic is done by Windows. There are a couple of unfortunate restrictions and the web is full of complaints. However, up to now there hasn’t been any change from Redmond.
My first rant on similar topics dates back to 2008, actually: IFileDialogCustomize Questions
So I have to close this request as we cannot offer a solution. A workaround might be to revert to the old file dialogs that are still present in the product, however you’re losing the automatic Windows Look & Feel then. Add a registry switch at
HKEY_CURRENT_USERSoftwarecombitCMBTCTL
New String = ForceOldFileDlg
Value = T