[Bug 7986] Citavi trial fails to install .net framework

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7986

------- Additional Comments From [e-mail]  2007-09-04 15:35 -------
This appears to be enough to make the installer believe .net 2.0 is installed:

cat >> $HOME/.wine/system.reg <<"_EOF_"
[Software\Microsoft\.NETFramework\policy\v2.0]
"4322"="3706-4322"
_EOF_

Then, with the help of Dan's great little tool we add a truckload of
required packages:

~/winetricks.sh -q fakeie6 corefonts tahoma mdac28 || ~/winetricks.sh -q
native_mdac mdac28 jet40 mono12

The installer wants to update both mdac and jet but eventually it
completes. Running the app produces a nice mono backtrace:

Unhandled Exception: System.NullReferenceException: Object reference not set 
to an instance of an object
  at Asz.Gui.TextEditor.OnBackColorChanged (System.EventArgs e) [0x00000]
  at System.Windows.Forms.Control.set_BackColor (Color value) [0x00000]
  at System.Windows.Forms.TextBoxBase.set_BackColor (Color value) [0x00000]
  at System.Windows.Forms.RichTextBox..ctor () [0x00000]
  at Asz.Gui.TextEditor..ctor () [0x00000]
  at (wrapper remoting-invoke-with-check) Asz.Gui.TextEditor:.ctor ()
  at Asz.Citavi.Program.UserDataFolderPathDialog.InitializeComponent () 
[0x00000]
  at Asz.Citavi.Program.UserDataFolderPathDialog..ctor () [0x00000]
  at (wrapper remoting-invoke-with-check) 
Asz.Citavi.Program.UserDataFolderPathDialog:.ctor ()
  at Asz.Citavi.Program.GuiManager.ValidateUserDataFolder () [0x00000]
  at Asz.Citavi.Program.GuiManager.Main (System.String[] args) [0x00000]