Write empty registry key

I'd like to create an empty registry key (no values inside the key)... kind of weird but this is the way the original software installer works so I must mimic it.

i.e. HKLM\SOFTWARE\wxyz\abcd

I tried
WriteRegStr HKLM "SOFTWARE\wxyz\abcd" "" ""
without avail. I also tried making a dummy value and then deleting it, but that also doesn't work. NSIS does not throw any errors.

Any ideas?

Thanks.

Sorry I just realized that it's in the WOW6432node

Mods please delete this post... since I can't seem to do it myself