Problem with SILENT installation of Device Drivers (D630) from Network

Hi, I am having problem with installing any drivers that has been downloaded from the DELL support website.

I know that these drivers are downloaded as an EXE file (example : R175929.exe for a D630 laptop) and can be extracted to any folder and then setup.exe can be double clicked to run the installation.

The above process workes fine.

BUT, .... I am trying to install these drivers from a network share with the silent installation parameter "/s" and that is NOT working !! When called, the setup.exe loads into the memory and unloads immediately after 2-3 seconds and the drivers are not installed.

My installation command line would look something like this :

\\servername\foldername\setup.exe /s

Now, for your ready reference, I already have a "setup.iss" file in the installation folder to support this silent installation that was created using the "/r" option with "setup.exe".

I could not find any useful information in the "event log" of windows as well.

Can someone please help me with this ? 

Regards,

iSukanta.