Hi Stefan, The attached patch is necessary for IE installer to work again. It seems the magic value is not always correct: advpack derefs this value so it probably points to a struct. I'll try and find out what it contains when using the native DLL (if anything). It seems to be optional, making it 0 allows IE to continue. Index: dlls/cabinet/cabinet_main.c =================================================================== RCS file: /home/wine/wine/dlls/cabinet/cabinet_main.c,v retrieving revision 1.3 diff -u -r1.3 cabinet_main.c --- dlls/cabinet/cabinet_main.c 30 Dec 2003 21:55:52 -0000 1.3 +++ dlls/cabinet/cabinet_main.c 2 Jan 2004 16:21:26 -0000 @@ -125,9 +125,10 @@ * DXDDEX.CAB, DXMINI.CAB, SWFLASH.CAB on win2k * but it crashes the ie5.5 installer :-( . The native dll does not return * the four zeros. The value depends on the combination of the cab file and - * the destination path + * the destination path. It appears to be a pointer to an optional return struct. + * The IE6 installer derefs this value + 4. Contents currently unknown. */ - dest->result2=0x130000; + dest->result2 = 0; LocalFree(dir);