WinZip silent doesn't work

[d0nut]

These lines are in runonceex.cmd:

REG ADD %KEY%\007 /VE /D "WinZip 8.1" /fREG ADD %KEY%\007 /V 1 /D "%systemdrive%\Install\WinZip\install.cmd" /f

And this is the install.cmd:

CMDOW @ /HID@ECHO OFF
SET DIROEM=%CD%MOVE "%systemdrive%\Install\WinZip" "%ProgramFiles%"START /WAIT winzip32.exe /cleaninstallSTART /WAIT REGEDIT /S .\registreerwinzip.reg
EXIT

The reg-file what is called for looks like this:

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Nico Mak Computing\WinZip\WinIni]"Name"="Toon Gorissen""SN"="[u]WORKING SERIAL NUMBER[/u]"[HKEY_CURRENT_USER\Software\Nico Mak Computing\WinZip\WinZip]"ShowTips"="0"[HKEY_CURRENT_USER\Software\Nico Mak Computing\WinZip\fm]"shlExt"="0"[HKEY_LOCAL_MACHINE\Software\Nico Mak Computing\WinZip\WinIni]"Setup"="1"

When RunOnceEx gets to the installation of WinZip, it looks like it's working, but it doesn't. If i execute the install.cmd myself, everything works just fine.

What am I doing wrong ?