Problem with API (mpr.dll)

I have tested the modVerifyPassword (WNetVerifyPassword in the kmpr.dll) and i have a problem with thids dll. I have a error message : Point d'entrée WNetVerifyPassword d'une dll introuvable dans mpr.dll --> Not find WNetVerifyPassword(entry point) in the mpr.dll. The Dll is in the same folder and in the C://Winnt/system32. I don't understand this problem.

Can you help me.

Does it exists an another function in the Api for change ou verify a windows network password.

Thank you