I was attempted to make some .7z files which a new experiment on my part as I have gotten the hang of making CAB files somewhat sucessfully. All of this was tested in VMware.
I made the following CABs and .7z files.
[Hotfixes]
C:\lapetite's CAB Files\Shockwave_v11.6.3.633_Non-Silent.cab
C:\lapetite's CAB Files\Firefox_v7.0.1.cab
C:\lapetite's CAB Files\Optional CABS\Java6u29-windows-i586-s_Addon.7z
C:\lapetite's CAB Files\Optional CABS\NetFramework_1.0_Addon.7z
C:\lapetite's CAB Files\Optional CABS\MiniLyrics_v7.2.870_Silent.cab
C:\lapetite's CAB Files\RevoUninstaller_v1.93.cab
C:\lapetite's CAB Files\Optional CABS\UxStyle_ThemeAdder_Addon.7z
C:\lapetite's CAB Files\Optional CABS\WinAmp_v56_Silent.cab
C:\lapetite's CAB Files\Optional CABS\WindowsLive_ALL_2011.7z
C:\lapetite's CAB Files\WinRar_v4.0.1.cab
All but the following four installed:
C:\lapetite's CAB Files\Optional CABS\Java6u29-windows-i586-s_Addon.7z
C:\lapetite's CAB Files\Optional CABS\NetFramework_1.0_Addon.7z
C:\lapetite's CAB Files\Optional CABS\UxStyle_ThemeAdder_Addon.7z
C:\lapetite's CAB Files\Optional CABS\WindowsLive_ALL_2011.7z
Since I'm not familiar on how to make ini files so I basically unzipped someone elses .7z Java file and followed their example but neither the Java nor the Net Framework were anywhere to be found when I checked Program files or Revo uninstaller just to be sure.
Of course the Windows Live didn't install because of the conflict with the KB…. file so I wasn't surprised about that but thought I'd give it a try anyway.
The UxStyle didn’t install because as I read on their site (after the fact) it’s not meant to included in other people’s installer packs. I had to install it manually but the UxStyle and that software is really cool.
Since I followed the example of that other person’s Java .7z file, I thought that mine would work too but alas it didn’t .

Wait a minute before I forget. The Windows Live file didn't install but it the install process was visible whereas the the Java and Net Framework were non-existent as if I hadn't integrated them at all.
Any help would be appreciated.