.NET Framework

.NET Framework 3.0, released on 2006-11-06.

This package also includes:

Application Details:

Version: 3.0
License: Free to use
Votes: 5
Latest Rating: Gold
Latest Wine Version Tested: 1.9.19-staging

Maintainers: About Maintainership

Link Microsoft .NET Framework 3.0 Free Download Microsoft .NET Framework 3.0 (Full Package) Free Download Microsoft .NET Framework 3.0 Service Pack 1 (Full Package)

Test Results

Old test results
The test results you have selected are very old and may not represent the current state of Wine.
Selected Test Results

What works

Installation using 'winetricks', e.g. 'winetricks dotnet30' (will install required .NET 2.0 prerequisite automatically)

Simple apps that don't make use of advanced features like WPF and WMI

What does not



What was not tested

Still various of bugs when running.
See notes, howtos.

Hardware tested


  • GPU:
  • Driver:

Additional Comments

Use 'winetricks' script for installation of .NET Framework 3.0 - especially if the app wants to install it on its own! Always use a clean WINEPREFIX for .NET installs (Framework + .NET based app)!

selected in Test Results table below
Operating systemTest dateWine versionInstalls?Runs?Used
ShowUbuntu 16.04 "Xenial" amd64 (+ variants like Kubuntu)Sep 28 20161.9.19-stagingYes Yes NoGoldan anonymous user 
ShowFedora 19 x86_64Dec 26 20141.7.33Yes Yes NoGoldAnastasius Focht 
ShowUbuntu 14.04 "Trusty" amd64 (+ variants like Kubuntu)Jun 24 20141.6.2Yes Yes NoGoldJonah Aragon 
ShowUbuntu 12.04 "Precise" amd64 (+ variants like Kubuntu)Jul 13 20131.6-rc5No Not installable NoGarbageKen Sharp 
ShowFedora 18 x86_64May 25 20131.5.31Yes Yes NoSilverAnastasius Focht 

Known Bugs

Bug # Description Status Resolution Other apps affected
16876 Multiple Microsoft component/prerequisite installers hang in basic UI mode due to incorrect PropertySheet 'Finish' return value for modal sheets (WIC, PowerShell, XPSEPSC) NEW View
30410 Many apps crash on Ubuntu 12.04 (ptrace broken again) RESOLVED NOTOURBUG View
32323 Netflix (Silverlight 4.x) and several .NET Framework 3.x/4.0 WPF apps require either Arial or Verdana to be installed STAGED View

Show all bugs

HowTo / Notes

Get winetricks!

Install winetricks (more details here) to make easier to configure the Wine prefix:

$ sudo wget '' -O /usr/local/bin/winetricks
$ sudo chmod +x /usr/local/bin/winetricks

Last update: 2020-05-03

As usual, create a new Wine prefix (for most applications, it's better to set its own prefix):

$ env WINEPREFIX=$HOME/winedotnet wineboot --init

If Wine prompts for installing Mono, click Cancel.

Install .NET Framework (and optionally install corefonts):

$ env WINEPREFIX=$HOME/winedotnet winetricks dotnet30 corefonts

Replace dotnet30 with dotnet30sp1 to install Service Pack 1.

There is no separate installer for Service Pack 2. You need to install .NET Framework 3.5 Service Pack 1 to do so.

Manually trigger rebuild of the Global Assembly Cache (GAC) after .NET Framework installation

Use the following command to manually trigger GAC rebuild after .NET Framework installation (or if the Wine prefix changed due to a Wine update):

$ env WINEPREFIX=$HOME/winedotnet wine "c:\\windows\\Microsoft.NET\\Framework\\v2.0.50727\\ngen.exe" update

Some errors (while loading dependent modules that are not GAC'd yet) are expected and can be ignored.

Verify .NET Framework installation using .NET Framework Setup Verification Tool (Microsoft)

Last update: 2023-06-16

To verify .NET Framework installation(s) you can use the .NET Framework Setup Verification Tool from Aaron Stebner (Microsoft) which checks for proper installation of .NET assemblies and registry entries:

$ wget ''
$ unzip
$ env WINEPREFIX=$HOME/winedotnet wine ~/netfx_setupverifier.exe

Select the .NET Framework version you want to verify and evaluate the log file manually if verification failed.

Installer dialog window disappears after pressing install button

This is expected. The installer is minimized to systray (there is a balloon tooltip, indicating the action). Double click installer icon in systray to restore the dialog window.­­

Amount of data to be downloaded from .NET Framework 3.0 web (online) installer is large (250 MiB)

The .NET 3.0 web installer detects Wine as Windows MUI with lots of language packs. Wine returns quite a number of supported user interface languages hence the installer tries to download a large number of .NET 3.0 language packs. This will later lead to problem because .NET 3.0 language packs require the corresponding .NET 2.0 language packs to be installed. These don't get automatically downloaded and installed which will lead to failure when the installer tries to install .NET 3.0 language packs.

Use the full (offline) installer (see download link). Be aware the full installer also has MUI (language packs) related problem, leading to large delay near the end of installation (see other note).

fixme:shell:URL_ParseUrl failed to parse ...

URL_ParseUrl FIXME messages on console when running/installin�g .NET apps are harmless and can be safely ignored. Example console output:

fixme:shell:URL_ParseUrl failed to parse L"mscorlib"

Setup has encountered a problem while trying to copy $shtdwn$.req (web installer)

­This is Bug 9158 encountered in .NET Framework 3.0 web installer. Either use full (offline) installer (see download link) or the following workaround in console:­­

$ _SFX_CAB_SHUTDOWN_REQUEST=1 wine ./dotnetfx3setup.exe
­ ­ ­
The application requested process termination through System.Environment.FailFast

If a .NET application exits with the following message in console:

err:eventlog:ReportEventW ...
Description: The application requested process termination through System.Environment.FailFast(string message).\n
Message: Unrecoverable system error.\n
at System.Environment.FailFast(System.String)\n
at MS.Internal.Invariant.FailFast...

Some of Wine's truetype fonts are still not in shape of being a complete replacement for Windows ones, causing errors.

You must use 'winetricks corefonts' recipe to work around this problem!

System.Window.Markup.XmlParseException when starting .NET apps

If a .NET application exits with the following message in console:

err:secur32:SECUR32_initSchannelSP TLS library not found, SSL connections will fail
err:winediag:SECUR32_initNTLMSP ntlm_auth was not found or is outdated. Make sure that ntlm_auth >= 3.0.25 is in your path. Usually, you can find it in the winbind package of your distribution.
fixme:rpc:RpcBindingSetAuthInfoExW unsupported AuthnSvc 10

You are missing the samba/winbind component which is essential for certain Wine functionality.

Please install winbind with your distribution package manager!

err:eventlog:ReportEventW .NET Runtime version 2.0.50727.42 - Unrecoverable system error

If a .NET application exits with the following message in console:

fixme:shell:URL_ParseUrl failed to parse L"WindowsBase.resources"
fixme:advapi:ReportEventW (0xcafe4242,0x0001,0x0000,0x000003ff,(nil),0x0001,0x00000000,0x33b6e8,(nil)): stub
err:eventlog:ReportEventW L".NET Runtime version 2.0.50727.42 - Unrecoverable system error.
fixme:advapi:DeregisterEventSource (0xcafe4242) stub­


This 'Unrecoverable system error' is pretty general and can be caused by many things. For instance by bad truetype fonts. Some of Wine's truetype fonts are still not in shape of being a complete replacement for Windows ones, causing errors. You must use winetricks corefonts steps to work around this problem!

$ wget
$ bash winetricks corefonts­