http://bugs.winehq.org/show_bug.cgi?id=11537
--- Comment #10 from Stephen E. Baker cycoone@hotmail.com 2008-02-12 15:28:35 --- (In reply to comment #7)
As there were lots of changes made, we still need the results of the regression test between 0.9.49 and 0.9.50. As Austin said, you can use reverse regression testing to find the patch that fixed the installshield problem and use that patch when doing the actual regression test. Same for any other problems encountered during a regression test. In the meantime, please attach a compressed +msi,+msidb log and the .msi file (compressed).
wine-0.9.49-264-g075e84b fixes the bug where the installer would give a 1603 error and abort copying the first file. This same revision exhibits my bug, where it gives a 1603 and aborts when it should ask for the second disk.
I have a feeling that this bug was produced during a time when it could not be tested or along with another bug that was fixed later.