Notepad++ failed to install on Vista

Hi,
I just installed Windows Vista on my PC and after the install of Notepad++ I had this error and I don’t know how to solve it. On my previous Windows 7 the Notepad++ worked just fine and I never had any error. Can anyone help me please to fix this error ? What is causing it ?
Thanks !

SetWindowsHookEx(KEYBOARD)faile…
GetLastError() returned 1428
OK
