Adjustment Layers without masks

I must not understand your question because if I wanted to "create an adjustment layer without a mask?", I would Ctl/J to duplicate the background layer, then select Image/Adjustments, then select the adjustment I wanted to apply. No mask will be created.

--
Alastair
http://www.pbase.com/alastair
'Wish I didn't know now what I didn't know then.'
...Bob Seger