Problem with validateuser.exe in unattended mode

<p style="padding: 0; margin: 0;"><span style="font-family: tahoma; font-size: 10pt;">Hi,<br /></span><p
style="padding:0; margin: 0;"><span style="font-family: tahoma; font-size: 10pt;"><br /></span><p style="padding: 0;
margin:0;"><span style="font-family: tahoma; font-size: 10pt;">I have problems with the validateuser.exe during
installationin unattended mode.<br /></span><p style="padding: 0; margin: 0;"><span style="font-family: tahoma;
font-size:10pt;">I'm trying to update an 9.2.8.1 to 9.2.9.3 windows 7 x64 installation.<br /></span><p style="padding:
0;margin: 0;"><span style="font-family: tahoma; font-size: 10pt;">In GUI mode the validation works. But in unattended
modeit always fails with:<br /></span><p style="padding: 0; margin: 0;"><span style="font-family: tahoma; font-size:
10pt;">"Incorrectpassword for user..."<br /></span><p style="padding: 0; margin: 0;"><span style="font-family: tahoma;
font-size:10pt;"><br /></span><p style="padding: 0; margin: 0;"><span style="font-family: tahoma; font-size: 10pt;">I
alsoreproduced the error with 9.2.9.3 windows 7 x86 installer running the following command twice:<br /></span><p
style="padding:0; margin: 0;"><span style="font-family: tahoma; font-size: 10pt;"><br /></span><p style="padding: 0;
margin:0;"><span style="font-family: tahoma; font-size: 10pt;">postgresql-windows-x86.exe --mode unattended
--superaccountpostgres --serviceaccount postgres --servicepassword "postgres" --prefix "C:\Program Files
(x86)\PostgreSQL\ProgramData\PostgreSQL\9.2\Data"--superpassword "postgres" --serverport 5432<br /></span>