It should work.

These are my Registry entries and they all have the same flavour:

HKEY_CURRENT_USER\SOFTWARE\Xara\XtremePro x64\10\Options\TextTool
HKEY_CURRENT_USER\SOFTWARE\Xara\XtremePro x64\11\Options\TextTool
HKEY_CURRENT_USER\SOFTWARE\Xara\XtremePro x64\12\Options\TextTool

HKEY_CURRENT_USER\SOFTWARE\Xara\WebDesignerPremium x64\10\Options\TextTool
HKEY_CURRENT_USER\SOFTWARE\Xara\WebDesignerPremium x64\11\Options\TextTool
HKEY_CURRENT_USER\SOFTWARE\Xara\WebDesignerPremium x64\12\Options\TextTool

UseSmartQuotes takes the setting of 1 for on and 0 for off.

No need to reboot.

I would use the XaReg25 utility to avoid playing with the Registry: Xareg25 > Text: untick Smart Quotes.

Acorn