天下沒有白吃的午餐，網路上有免費的共享軟體供人下載，但不少軟體加裝了 Spyware偷窺軟體，不但可蒐集到網友的上網行為，甚至連信用卡帳號、連線的帳號及密碼「全都錄」，網友如果簽署了同意書，很可能就掉入隱私權的陷阱裡，電腦裡的秘密被一覽無遺。目前包含上傳軟體CteFTP、網路傳輸軟體GetRight、FlashGet及MP3分享軟體iMesh等上千種免費軟體都已經被證實含有偷窺軟體， 不過大部份網友都不知道偷窺軟體的資訊蒐集功能。
由於網友在下載免費軟體時，通常會出現用戶授權協議(EULA)的同意書，裡面會用含糊不清的字眼，告知網友是否同意「允許收集個人資料」，加上這些同意書的內容多為長篇的英文，許多網友在懶得仔細閱讀的情形下，無意中就同意偷窺軟體的行為。
因此當網友下載了免費軟體之後，電腦裡也同時有了偷窺軟體，偷窺軟體會在硬碟裡留下可供日後辨識的機制，當網友再次上網時，網友的上網行為，例如名字、 IP、瀏覽過的網站、在每個網站停留的時間、下載哪些檔案、上網的總時數等，偷窺軟體都會蒐集下來，功能強大的偷窺軟體甚至可以得到網友瀏覽每一個畫面的過程、連線的帳號及密碼、信用卡帳號及電腦硬碟的檔案資料等。
NeatFTP 1.0
Net CB 1.0
Net Scan 2000
Net Vampire 3.3
Net-A-Car Feature Car Screensaver
NetAnts
NetBoard
Netbus Pro 2.10
NetCaptor 5.0
Netman Downloader 1.0
NetMole 1.0
NetNak 4.2
NetShark 1.0
NetSuck 3.10.5/3.1
NetTime Thingy 1.5
Network Assistant 1.9
NetXtract
NeuroStock
NewsShark
NewsWire 1.5
NfoNak 4.1
NikNak 2.0.1
NotePads+ 2.0
Notificator 1.01b
Octopus 3.0
OfTheDay Creator 1.0
OfTheDay Quizzer 1.1
OnlineCall 1.19
Option Insight 0.6.2
Paint by numbers
Pattern Book 1.0.02
PerfectPartner-Time&Billing (Demo)2.0
Personal internet Finder 1.7
Personal Search Agent .8
People Seek 98
PGNSetup
Photocopier 2.0
PicPluck 2.0
Pictures In News 1.0
Ping Thingy
PingMaster
Pixel Pirate 1.0
Planet.Billboard
Planet.MP3Find 3.0
PMS
ponnu CHAMY′s Music
PopMon 1.0.0.1
Popup Dictionary 2.0.70
PowerPak Accounting and Inventory Management-Demo 2
PrePromote 1.0.0
PromaSoft Autoresponder 1.0732
ProtectX 3.0
ProxyChecker
Q*Wallet 1.6
QuadSucker/Web 1.8
Quadzle Puzzles
QuikLink Autobot
QuikLink Explorer
QuikLink Explorer Freeware Edition 3.0
QuikLink Explorer Gold Edition 3.0
Quo Tracker 1.1.48
Quota
Quote Ticker Bar 6.0
QuoteWatch 4.2
Real Estate Web Site Creator 1.0
ReallyEasy Interactor 3.0(1)
RealReverb Convolution 1.3
Recipe Review
Rededit
ReGet 1.6
Remoteshut
Rename Master
Rest Your Eyes 3.0
Resume Detective 1.5
RingSurf
RoboCam 1.10
Rosemary′s Weird Web World
Rosoft CD Extractor 1.09
Rosoft Media Player.1
SimpleFind 1.0
SimpleSubmit 1.0
SiteBack
SiteChecker
SiteSniffer 1.0
Skeet Shooting 1.1
SaberQuest Page Burner
SaberQuest Tag Specification Edit
Savings4u 1.0 Beta 3
SBJV 3.0
SBWcc 2.0
Scout′s Game 1.0
ScreenFIRE 3.0
ScreenFIRE - FileKing
ScreenFlavors
Scripto .80
Sea Battle 1.0
SERanker 1.24
Shapez! 1.0
Shizzam 2.6
Simple Submit 1.0
SimpleFind 1.0
SiteBack
SiteChecker
Sitesniffer 1.0
Skeet Shooting 1.1
SK-111
SLEdit
Slide Puzzle 1.00
SmartBoard 200 FREE Edition 2.6
Smart ′n Sticky
SmartSum Calculator 2.0
Snap-It 4.0
Snipsnap 2.0
SoftCuisine 2 2.0
SonicBurn 1.3.178
SonicMail 2.6
Sound Agent 1.0
Space Central Screen Saver
Space Checker
Speaking Email Deluxe 5.5.0
Splash! Siterave
Spherical HTML-Templator
Spherical MP3INFO-Editor 1.0
StartDrive 1.0
Static FTP
StationRadio
StockBrowser 1.9
Subscriber
SunEdit 2K
SunEdit 2k Mod Manager
SunKoSoft WebNewser 1.0b
SuperIDE 1.4
Sweep 1.4
SweepsWinner
Text Transmogrifier
The Cassette Tape Producer 4.0.6
The Mapper
The Receptionist Desktop Edition 5
The Star Wars Combine HoloCom
TheNet 3.69
Tic-Tac-Toe Done right
TI-FindMail 2.0
TIFNY 3.0
too Many Secrets 0.0.6 beta
Total Finger 1.3
Total Whois 2.0
Tracking The Eye 1999
Trade Site Creator 1.1
Traffic Attractor 2000 4
Triangle Puzzle 1.00
Trivialnet 0.60
TUCOWS Uploader 2.11
twinExplorer 2.5
TWinExplorer Standard
TypeWriter 1.0
UdmSearch 3.0..11.2
UK Phone Codes
Vagabond′s Realm 0.9.1
VeriMP3 1.0
Veritape 1.3
Vertigo QSearch
Virtual Access 5.0
Visual Cyberadio
Visual Surfer 1.4
VOG Backgammon Main 2
VOG Backgammon Table
VOG Chess 2
VOG Chess Main
VOG Chess Table
VOG Reversi Main
VOG Reversi Table
VOG Shell
VOG Shell History
W3Filer
W3Filer(32) Up/Downloader Internet Files 3.1.3
WarrenView 1.0
′WE′ Group ProxyChecker 3.1.8
Web Coupon 1.0
Web Database
Web Page Authoring Software
Web Registrant PRO 4.0
Web Resume 1.0
Web SurfACE 2.0
Web Word Search 1.0
Web-N-Force 1.7
WEB2SMS 1.0
WebBug
WebCam Wonder 1.0
WebCamVCR 1.0
WebCopier 1.3
WebDrive 3.0
Webman 5.3
WebReaper 8.0
WebSaver
Website Manager
WebStripper 1.05
WebType 1.0
WebZip 3.5
WhoIs Thingy
Win A Lotto
WinEdit 2000
WinMP3Locator
Word+
Wordwright 1.0
WorldChat Client
Worm
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xBlock 1.2
Your ESP Test
Zarko 1.9
Zarko3D
Zip Express 2000
Zip Up The Web Pro!
Zion 1.51
