Begins with letter <U>

ub & Bob v1.0
Name: MoonDark
Game Code: 467542272

U-Page 4.0.1
0002-3373-0867-2034

Ultima III 
v1.3.x
Name: Mr. Zeus
Serial: LDDMGJUJ
v1.3   
BLDNCDJL     HackUser
LBUPPTQG     Buck Rogers 
v1.x   
MKDYNAKS   
'Anonymous'

Ultimate Label Printer Pro
v5.x      9072386     5742936    3748238     4597293     7903480                                                                                                                                          v5.0      4348823     2348236    6723673     1387893     5742936
     
UltraFind 
v2.x.x
Name: Hades
Serial: 0003412584
v2.5 .x    
0004459536    HackUser
0004675320    Anonymous
v2.2     
4102560    
Buck Rogers    
v2.x.x   
0004675320 
'Anonymous'   
2981460

'Doom'   
4675320

'Anonymous'

UltraPaint 1.0.3
19369   51736   v1.x   51736   88613

UnderWare 
v2.0     SN: UW030047813
1.01     SN: UW020025406

Updater VISE 
v1.3      UPV110M1273297-21038   UPV110M0000124-14757
v1.1.x    UPV110M1792432-13424   UPV110M9660827-92546  UPV110M0145995-74820
v1.1     UPV110M0000124-14757
v1.0.2   Buck Rogers    UPV100R12-3456-172
v1.0.1   UPV100R3743465-175  UPV100R1413575-627  UPV100R6738451-124

Underwear Girl
vAll
Double-click on the unremovable bra or panties, and when it asks for a 
password, enter:   axolotl

Updiff 1.0
309438180

Underwear Girl
Double-click on the unremovable bra or panties, and when it asks for a password, enter: axolotl

UnDoIt! v1.0
74656-KPSJ16309-QW359-001

Uniqorn v1.0
UQ199930114056-605

URL Manager 
v2.0 Pro
Name: MoonDark:
Registration Key: aoM135118848
v2.0v1
suM100761600   
Akuma
v2.0b3
1247019008      
MaximumBob
1198129153      
SPC!     
v1.3.1      1249509376    Buck Rogers
v1.1.x      1244397568   'Anonymous'

UserLand Frontier 
ULF.13106.100