w3x viewer error

[irfanati 1]

hey, guys, i need some help with W3X VIEWER error. it says exception unknown error. I heard if i delete the registry it will resolve. But which registry ? Please help me.

================================================================================
EXCEPTION_UNKNOWN:
Unknown exception code 0xc015000f

Exception occured at
775045c1 ntdll.dll+0x845c1, RtlUlonglongByteSwap+0x71d1.

Version: release

EAX:0x0018fa90 EBX:0x17790008 ECX:0x00000001
EDX:0x00000000 ESI:0x006f54b8 EDI:0x006f5518
EIP:0x775045c1 ESP:0x0018fa84 EBP:0x0018fae0
Flags:%00000000000000000000001000000110
CS:0x0023 DS:0x002b SS:0x002b
ES:0x002b FS:0x0053 GS:0x002b

CW:%0000001001111111
SW:%0100000000100000
TW:%1111111111111111
ErrOfs:      0x00000000 ErrSel:  0x00000000
DataOfs:     0x00000000 DataSel: 0x00000000
Cr0NpxState: 0x0d0b1b60
ST(0) 00000000000000000000 0.000000
ST(1) 00000000000000000000 0.000000
ST(2) 00000000000000000000 0.000000
ST(3) 00000000000000000000 0.000000
ST(4) 00000000000000000000 0.000000
ST(5) 00000000000000000000 0.000000
ST(6) 00000000000000800340 16.000000
ST(7) 0000000000000080fb3f 0.062500

12 addresses:
(unknown)(0): ntdll.dll+542145 RtlUlonglongByteSwap+29137
(unknown)(0): kernel32.dll+87172 DeactivateActCtx+40
(unknown)(0): MFC80.DLL+222977 (unknown)
(unknown)(0): MFC80.DLL+203879 (unknown)
(unknown)(0): MFC80.DLL+226023 (unknown)
(unknown)(0): MFC80.DLL+226610 (unknown)
(unknown)(0): MFC80.DLL+378999 (unknown)
(unknown)(0): MFC80.DLL+379645 (unknown)
(unknown)(0): MFC80.DLL+386422 (unknown)
(unknown)(0): MFC80.DLL+372490 (unknown)
(unknown)(0): MFC80.DLL+372954 (unknown)
(unknown)(0): MFC80.DLL+434339 (unknown)

Bytes around EIP:
775045a1 b8 c7 45 c0 03 00 00 00 89 4d c4 89 75 c8 89 7d ¸ÇEÀ....‰Mĉuȉ}
775045b1 cc c7 45 b0 0f 00 15 c0 89 55 b4 e8 a7 28 fc ff ÌÇE°...À‰U´è§(üÿ
775045c1 8b 36 e9 a6 05 fe ff ff 77 04 e8 73 75 fb ff e9 ‹6é¦.þÿÿw.èsuûÿé
775045d1 a5 05 fe ff 8b 4d fc 83 65 b4 00 89 45 c4 89 45 ¥.þÿ‹Müƒe´.‰EĉE
775045e1 c8 c7 45 bc 04 00 00 00 89 4d c0 8b 40 08 89 45 ÈÇE¼....‰MÀ‹@.‰E