Ok, i reinstalled MC 11.1. The registration info is ok.
But when i try to upgrade it's the same problem as before.
Media Center Registered 11.1.191 -- C:\Programme\J River\Media Center 11\
Microsoft Windows XP Workstation 5.1 Service Pack 2 (Build 2600)
Intel Pentium 4 2991 MHz MMX / Memory: Total - 1047 MB, Free - 397 MB
Internet Explorer: 6.0.2900.2180 / ComCtl32.dll: 5.82.2900 / Shlwapi.dll: 6.0.2900 / Shell32.dll: 6.0.2900 / wnaspi32.dll: 4.71 (0002) , ASPI for Win32 DLL, Copyright © 1989-2002 Adaptec, Inc. / Aspi32.sys: 4.60 (1021)
Ripping / Drive I: Mode:Normal Type:Auto Speed:Max
Drive J: Mode:Normal Type:Auto Speed:Max
Digital playback: Yes / Use YADB: Yes / Get cover art: No / Calc replay gain: Yes / Copy volume: 32767
Eject after ripping: Yes / Play sound after ripping: No
Burning / Drive J: HL-DT-ST DVDRAM GSA-4040B Addr: 1:1:0 Speed:24 MaxSpeed:24 BurnProof:Yes
Test mode: No / Eject after writing: Yes / Direct decoding: Yes / Write CD-Text: Yes
Use playback settings: No /