If your local time zone is behind the Milan's time zone, the dates/times of the downloaded GN4 files may be in "future". For example, if you install an application, compiled at 7PM on Aug, 29 2011 at 1PM in your time zone, various errors (related to date, or to icons) may appear.

In order to avoid such errors, and have not to wait for hours, you should touch the date on the files WebUI.dll and Server.dll.

Open the Command prompt window, switch to the bin directory where the files are, and run:

copy /b webui.dll +,, 

copy /b server.dll +,, 

It means that the assembly was built in future according to the webserver, the command above will 'touch' files so they appear to be of current date.

Note

Should you need to do the same on all files in a folder, use this syntax:

for %i in (*.dll) do copy /b %i+,,  

Next step

Install downloaded prerequisites