ReactOS comdlg32.dll failure on win 2k3 and XP

ReactOS comdlg32.dll fails when used on win2k3 host, as shown in attached screenshot.
The gravest failure is not displaying file list.

Steps to reproduce:
1. Disable Windows File Protection.
I have used WFPSwitch from https://msfn.org/board/topic/110834-disable-xp-sfcwfp-works-with-sp3/
with win2k3 booted in safe mode.
2. Rename original comdlg32.dll to something else.
3. Insert ReactOS version in its place.
4. Reboot.
5. Launch an application that uses GetOpenFileName and similar(MSPaint in my case).

Alternative way to use it is to patch IAT of an application to point to it instead of original comdlg32.dll

I've also attached screenshot with original comdlg32.dll in action.