You are downloading the Net Swiss Knife XAP file v188.8.131.52 for Windows Phone. Net Swiss Knife is a free and useful Productivity app: Would you mind a DNS query? Wake-On-Lan? WHOIS? Or TCP port probing? Net Swiss Knife can handle all these with ease and style. And with Wake-On-Lan, ... You can now download the offline XAP file to install & try it.
Download Locations for Net Swiss Knife 184.108.40.206 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Net Swiss Knife XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.