Hello everybody,

I have to find how to install this application in silence!
http://www.hec.usace.army.mil/software/hec-geohms/download.html

Start the msi installer "HEC-GeoHMS_10.0_Setup.msi"
Keep two files in the folder : C:\Documents and Settings\%userUsingForTheInstallation%\Local Settings\Temp
- one in  the folder {CAF2499D-AF9F-493F-834D-6C530302F047} -> ArcHydroTools.msi
- the second one -> 249ae9.msi

Execute :  msiexec /i "%folder%\ArcHydroTools.msi" /qb!
and after : msiexec /i "%folder%\249ae9.msi" /qb!

Successfully installation in silent