I'm doing a clean installation osTicket-v1.15.1 on a Windows server 2016, IIS 10, I have installed php-7.2.33-nts-Win32-VC15-x64, I copy de "upload" folder in "C:\inetpub\wwwroot\" and renamed it "osticket" (C:\inetpub\wwwroot\osticket).
but when I visit http://localhost/osticket, I get:

this is the "web.config" file:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<directoryBrowse enabled="false" />
<rewrite>
<rules>
<rule name="HTTP api" stopProcessing="true">
<match url="^(.*/)?api/(.*)$" ignoreCase="true"/>
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile"
ignoreCase="false" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory"
ignoreCase="false" negate="true" />
</conditions>
<action type="Rewrite" url="{R:1}api/http.php/{R:2}"/>
</rule>
<rule name="Site pages" stopProcessing="true">
<match url="^(.*/)?pages/(.*)$" ignoreCase="true"/>
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile"
ignoreCase="false" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory"
ignoreCase="false" negate="true" />
</conditions>
<action type="Rewrite" url="{R:1}pages/index.php/{R:2}"/>
</rule>
<rule name="Staff applications" stopProcessing="true">
<match url="^(.*/)?scp/apps/(.*)$" ignoreCase="true"/>
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile"
ignoreCase="false" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory"
ignoreCase="false" negate="true" />
</conditions>
<action type="Rewrite" url="{R:1}scp/apps/dispatcher.php/{R:2}"/>
</rule>
</rules>
</rewrite>
<defaultDocument>
<files>
<remove value="index.php" />
<add value="index.php" />
</files>
</defaultDocument>
</system.webServer>
</configuration>
I'm following the official instructions, what's wrong
Thanks for the help!!!