Dell System Software (DSS) for my win7 64bit laptop?

anybody (especially from Dell) can give me a link to the Dell System Software for my Inspiron 15 N5050?

 the Dell drivers and utilities disk says i need to install this first before any drivers, but it is not on the disk and it does not come up among the other drivers for my laptop on the dell website...

i have found a DSS for Win7 on the dell website below, but my Inspiron N5050 model is not listed here...so not sure if its compatible with mine? i cant do factory reset hence the need... thank you.


http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=JX1KK