Ok so lets start, you need module-assistant as you have to build the ndiswrapper from the source seperately, so type
apt-get install module-assistant
then prepare the build environment
module-assistant prepare
this will download the kernel-header and setup the symbolic links, now install the ndiswrapper-source package
apt-get install ndiswrapper-source
if you have internet access only via WiFi the download the packages from http://packages.debian.org and then install them, next build ndiswrapper
module-assistant build ndiswrapper
now type
apt-get install ndiswrapper-utils-1.9
now you are ready to install the drivers for that follow this enjoy
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