Intermittently, when calling custom actions written in .Net (C#), an error is
reported to the Windows Installer even though the code returned "Success". We
are using Wix 3.0.5419.0.
Example:
Action start 14:02:56: IISReset.
SFXCA: Extracting custom action to temporary directory:
C:\Windows\Installer\MSI6439.tmp-\
SFXCA: Binding to CLR version v2.0.50727
Calling custom action
IISCustomAction!InstallerCustomActions.CustomActions.IISReset
CustomAction (IISReset):
Attempting stop...
Internet services successfully stopped
Attempting start...
Internet services successfully restarted
Action ended 14:03:06: IISReset. Return value 3.
Action ended 14:03:06: INSTALL. Return value 3.
The custom action code is fairly simple:
[CustomAction]
public static ActionResult IISReset(Session session)
{
ProcessStartInfo iisResetCmd = new ProcessStartInfo("iisreset.exe");
iisResetCmd.RedirectStandardOutput = true;
iisResetCmd.UseShellExecute = false;
iisResetCmd.CreateNoWindow = true;
Process p = new Process();
p.StartInfo = iisResetCmd;
p.Start();
string res = p.StandardOutput.ReadToEnd();
session.Log("CustomAction (IISReset): " + res);
return ActionResult.Success;
}
This happens occasionally (1 in ~50 installs) with several of the custom
actions (all are in the same dll, but IISReset is the simplest example). Code
compiled with "Microsoft (R) Visual C# 2008 Compiler version 3.5.30729.1", and
then MakeSfxCA.exe ("Deployment Tools Foundation custom action packager version
3.0.0.0"). Installing onto Windows Server 2008 (64-bit). Attempting to install
a second time on the same server succeeds. Installation done from command line
without using the GUI (nobody has complained of strange failures using the GUI
so far).
Is this a known issue? Any idea on how to prevent this from happening?
Thanks
--- John
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