REGRESSION: Adobe Reader 7 - cannot install

r64865, VBox 4.3.12.
This one is a bit older - installation of Adobe Reader 7 excepts on start.

59323 - OK
59324 - NOK

This is oleaut32.dll+2fe2 from the log below:
dll/win32/oleaut32/oleaut.c:191 (SysStringByteLen)

Full exception log:
fixme../../dll/win32/ole32/compobj.c:3991) (00000000,-1,00000000,00000000,0,3,00000000,0,00000000) - stub!
Unhandled exception
ExceptionCode: c0000005
Faulting Address: 1e0018
CS:EIP 1b:76342fe2
DS 23 ES 23 FS 3b GS 0
EAX: 001e001c EBX: 00000000 ECX: 001384e0
EDX: 00130640 EBP: 0012faa4 ESI: 001384e0 ESP: 0012faa4
EDI: 001e001c EFLAGS: 00010202
Address:
76340000+2fe2 C:\ReactOS\system32\oleaut32.dll
Frames:
400000+114a0 D:\AdbeRdr7.0_en_US.exe
400000+111e2 D:\AdbeRdr7.0_en_US.exe
400000+17ae4 D:\AdbeRdr7.0_en_US.exe
400000+1778b D:\AdbeRdr7.0_en_US.exe
400000+1d6ca D:\AdbeRdr7.0_en_US.exe
77d80000+fbd8 C:\ReactOS\system32\kernel32.dll