msi automation patches

[Misha Koshelev]

Ok, so since my patches weren't commited to git yet, I've consolidated
the new automation changes I've made in the attached patches. James and
Rob, if they look good to you I will submit these version to
wine-patches (so my total will once again be four patches, 1 is
http://www.winehq.org/pipermail/wine-patches/2007-February/036359.html ,
2 and 3 attached, and 4 is 
http://www.winehq.org/pipermail/wine-patches/2007-February/036362.html ) and
wait to submit anything more for automation until all 4 patches are in.

Please let me know Rob (I used DispGetParam, thanks a lot, so probably just need to 
look at my AutomationObject::Invoke and then the individual object Invoke handlers in
the 0003 patch below) and James (I guess in regards to comments and formatting).

Thanks a lot
Misha