Begins with letter <X>

Xaos Tubetime
v1.0  
SN: 100100310040
SN: 400001952870

XeNoN II
Name: KK Serials
Serial: 266864-926
Name: MMC
SN:   882569-996

X-FerIT
Name: anonymous
Code: 550035173-2 

X-Mas Lights 
v1.0
125001751

XoftWare 
v3.0
s006163

XPert Tools Volume 1
vAll
XPT1100-2080-0556-0330-80AA-2

XPert Tools Volume 2
vAll
XPT2100-2790-0063-0100-30AC-9

XP INposition 
v1.5.1
IM-3727581

XP PressMarks 
v1.0.6
001139

XPress Xtension Imposer
v1.0.2
IMPS100-3030-134-0820-70AP-1

XP Print Tools XT 
v1.0.1
815715147

XP QX-Tools 
v2.0    
QMU-200-001-915-10796  
QMU-200-001-915-106796
v1.0    
QMU-100-001-915-106796

XP Squizz 1.0
801538  801652

xRes 2.0  (MacroMind)
v3.0    
REM300-10058-87782-19326 
v3.0b   
500-07377-17072-89453
v 2.0 
50020-0509-0166-10804  50020-0040-4492-15201  50020-0023-0007-54189  50020-0048-0016-75183  50020-0073-0013-03894  50020-0093-1123-21144  50020-0153-0050-36821  50020-0383-0124-02054  50020-0509-0166-10804  50020-0536-0173-26154  50020-0571-0183-92768  50020-0685-1337-85281

XTraNet for Director                                                                                                 To initialize the Xtra without the "Unregistered" 
dialog coming up, pass "XNET101-00000-00000" as a string to the XNetInit  function: XNetInit("XNET101-00000-00000")  

X-Words Deluxe 
v1.2
11955800
v1.0
Name: MoonDark
Code: 119558789
To make the registration dialog appear, enter "shazam" when in the game window