My CustomAction is not working - wix

I have the following CustomAction:
<CustomAction Id="CopyToSystem32" ExeCommand="[INSTALLFOLDER]copy.bat"
Directory="INSTALLFOLDER" Execute="deferred" Return="asyncWait" />
<InstallExecuteSequence>
<Custom Action="CopyToSystem32" After="InstallFiles" >NOT Installed</Custom>
</InstallExecuteSequence>
The .bat itself tries to copy some files into System32 folder. But it's not copying them. The log says the following:
CustomAction CopyToSystem32 returned actual error code 1 (note this may not be 100% accurate if translation happened inside sandbox)
MSI (s) (A4:DC) [15:58:46:812]: Executing op: End(Checksum=0,ProgressTotalHDWord=0,ProgressTotalLDWord=313699) 1: CopyToSystem32 2: 1603
Why isn't my CustomAction working?

Try setting Impersonate to no on your custom action
<CustomAction Id="CopyToSystem32" ExeCommand="[INSTALLFOLDER]copy.bat"
Directory="INSTALLFOLDER" Impersonate="no" Execute="deferred"
Return="asyncWait" />
that will allow your deferred custom action to run with admin privileges.

What's in the bat file? You might be asking us to debug the contents of a bat file we know nothing about. Anyway, WiX has a copyfile element that will do this without bat files, using the underlying MSI tables.
The actual error (without seeing inside the bat file) is probably the result of an assumption that the bat file is running in the same environment as if you ran it from your desktop as interactive user, but it isn't. It's being run from an msiexec.exe process that makes no assumptions about where files are located and is running with the local system account (because it's deferred).

Very few files should be copied to system32 these days. Perhaps driver files, Active X OCX files, Control Panel Applets, maybe Console Snapins, Screen Savers - all pretty unusual stuff to deploy, and I believe many of them not really necessary to deploy there at all. Are these the types of files you intend to install to system32?
Remember that there is a whole lot of protection going on in system32 via Windows File Protection on XP (replaced files reset by Windows itself) and Windows Resource Protection on Vista upwards (locked down and protected files using Windows NTFS rights). What you do there might be undone by Windows itself, so stay out of the folder if you can. And if you try to deploy runtime files from Microsoft, they should generally be deployed via Microsoft hotfixes and / or a few "still relevant" merge module runtime packages.
Deployment is not like it used to be. It is very complicated now, and many things that used to work will never work at all. It is especially important to not deploy files that are likely to be replaced by windows hotfixes. Instead, find the version of the file you depend on and set the setup to be dependent on that version or higher. See a good discussion of this here: How can I include KB2670838 in an installer with InstallShield 2013?

Related

In WiX, update a windows service appSettings.json before starting services

I have a WiX project that installs a few Windows Services that are written in .NET 6. They each have an appSettings.json file in their directory in Program Files. During the install UI, I need to ask a question of the user and update the appSettings.json files with the answer to that question. Here's the tricky part:
I need to modify the files in Program Files (which requires elevated privs)
I need to modify them after they are copied but before the services are started
We don't want to require that the install be run as admin
We are open to the notion of locating the appSettings.json files in some other directory that the install will have write permission to, but I don't know where that would be. It shouldn't be user-specific, since these are services that run as System.
I have a CA that tries to modify the files, but it fails because I don't have write permission.
Here's what I've currently got for my CA (a C# DLL):
<CustomAction Id="UpdateConfigJson" Impersonate="yes" BinaryKey="MyCustomAction" DllEntry="UpdateConfigJson" Execute="deferred" Return="check" />
<CustomAction Id="SetCADataProp" Property="UpdateConfigJson" Value="Arg1=[VALUE1];Arg2=[VALUE2]" />
<InstallExecuteSequence>
<Custom Action="SetCADataProp" Before="UpdateConfigJson"/>
<Custom Action="UpdateConfigJson" Before="StartServices" />
</InstallExecuteSequence>
The SetCADataProp CA allows for passing installer properties into my deferred CA.
The whole thing works except that I get the permission failure when trying to write to the files.
This question is more of a conceptual thing: Is there a known procedure for doing this (as this doesn't sound an uncommon need), or is the solution to put the files somewhere else?
Thank you!
If you want to write to an elevated location (like ProgramFilesFolder) then do not have your custom action impersonate the logged-in user, i.e. remove the CustomAction/#Impersonate='yes' attribute.

Custom action with elevated privileges to run batch file

I need to launch .cmd script during installation, and this script modify some files in the installation directory.
I have the following WiX code:
<Fragment>
<Property Id="WINCMD">cmd.exe</Property>
<CustomAction Id="ResignManifest"
Property="WINCMD" ExeCommand="/C [ToolDir]manifest_resign.cmd"
Execute="deferred" Impersonate="no" Return="check"/>
<InstallExecuteSequence>
<Custom Action="ResignManifest" After="InstallFinalize"/>
</InstallExecuteSequence>
</Fragment>
The problem is that during installation the script fails to do modification, because of insufficient access rigths. My CA specifies that MSI should not impersonate the user context (I launch installer with Admin rigths), but cmd.exe runs without Admin rights.
PS. I know that this isn't good practice to additionally launch bat/cmd files during installation, but I have to do it to resign application and deployment manifests for some Silverlight application (during installation user modifies application config file, so the hash of such file inside manifest become invalid).
Somewhere in my answer history I've addressed this one before. The trick is to simplify the problem by refactoring the Silverlight code to read from a settings.xml file that isn't signed. This is what I had my developer do a few years ago for an internal app we wrote. The server side has a settings webservice that reads from a settings.xml file. The Silverlight app that calls the webservice to retrieve it's settings. This eliminates the need for the custom action.
See: How to do Text file changes in a ZIP file in InstallShield Basic MSI project
Creating and Using Silverlight web.config app settings (Web.config Configuration Applicatioin Settings) or app.config application settings configuration file for Silverlight
I agree with what you already know. It's not a good design to call a batch file and resign files laid down by MSI. You are right, you should already be executing in the system context. Are you sure CMD.exe isn't running elevated? I don't know how you could determine that as it's not getting logged by MSI. I'd suggest at a minimum using the QuietExecCA pattern to get the results of the cmd script logged in the MSI log.

Wix error 1721 related to CustomAction

I have following CostomAction
<Binary Id='ManualsBat' SourceFile='bin\Debug\test.bat' />
<CustomAction
Id="manuals"
BinaryKey="ManualsBat"
ExeCommand="[SourceDir]Manuals "[Agent]Manuals""
Execute="immediate"
Return="check" />
test.bat contains the following lines :
#echo off
echo Hello this a test batch file
pause
mkdir %2
copy %1 %2
What it is basically intended to do is, when the installer is run, the batch file needs to get executed. The batch file has to create a new directory "[Agent]Manuals" and it has to copy all the files from [SourceDir]Manuals to [Agent]Manuals.
When I builds .wxs it does not give any error bur when I run the .msi then it complains of the following in the log files
Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: manuals, location: C:\Windows\Installer\MSI1F50.tmp, command: C:\dev\CD\Agent\pd\components\link\source\Link\Installer\WiX\WiX\bin\Debug\Manuals "D:\Cam\city\Agent\Manuals
Has anyone had experience with this kind of error. It will be great if someone can help me resolve this.
Most likely your custom action needs Administrator privileges. Try setting Execute attribute to deferred and Impersonate to no. Please note that these options require the action to be scheduled after InstallFinalize standard action.
Maybe problem in quotes. Change in ExeCommand quotes.
Try this:
<Binary Id='ManualsBat' SourceFile='bin\Debug\test.bat' />
<CustomAction
Id="manuals"
BinaryKey="ManualsBat"
ExeCommand='"[SourceDir]Manuals" "[Agent]Manuals"'
Execute="deferred"
Impersonate="no"
Return="check" />
<InstallExecuteSequence>
<Custom Action="manuals" Before="InstallFinalize">Not Installed</Custom>
</InstallExecuteSequence>
You generally need to call cmd /c foo.bat ( or command on Win9x ) to process .bat files.
However, I would never, ever do this in one of my installers. It violates the overall design on Windows Installer. MSI is a transactional, declarative programming language. Injecting out of process procedural code greatly increases the likelyhood of failure ( as you are experiencing ) and worse defeats the transactional benefits of MSI.
For example, if you create a folder and copy a file, that won't get undone during a rollback and it won't get removed during an uninstall. Instead, you should be using the built in Windows Installer features ( CreateFolder and CopyFile elements ) to achieve your goals.
On the occasion that custom actions are truely needed (in your example you are merely reinventing the wheel with an inferior solution) they should be designed using robust languages and maintaining a declarative (data driven) and transactional design while respecting the security model that MSI uses.

Is it possible to execute a custom action in WiX that is a managed .EXE file?

I am trying to execute a custom action that was written C# (.NET 3.5) that has a dependency on a single DLL (Also C# 3.5). I have included both the .EXE and .DLL in the installation, and verified that they are being copied to the install location. However, every time I attempt to run the custom action, I get the following error:
Action start 7:21:16: InstallFinalize.
Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: UpgradeTo022, location: C:\Program Files\Test\, command: Upgrade-0.2.2.EXE
MSI (s) (CC:38) [07:21:19:061]: Product: Test -- Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: UpgradeTo022, location: C:\Program Files\Test\, command: Upgrade-0.2.2.EXE
The Custom Action is defined as follows:
<CustomAction Id="UpgradeTo022"
Directory="INSTALLLOCATION"
Impersonate="no"
Execute="deferred"
ExeCommand='Upgrade-0.2.2.EXE'>
Note: The custom action must be run with elevated privileges, thus the deferred execution and Impersonate="no" attributes.
It is scheduled as follows:
<InstallExecuteSequence>
<Custom Action="UpgradeTo022" Before="InstallFinalize">NOT Installed</Custom>
</InstallExecuteSequence>
The files are installed as follows:
<Component Id="CMP_UpgradeCommon" Guid="8ECF5076-732E-4010-A33B-BE362D818949" Win64="yes">
<File Id="FILE_UpgradeCommonDLL"
Source="..\Upgrade\UpgradeCommon\bin\Debug\UpgradeCommon.dll" Vital="yes"/>
</Component>
I've seen some allusions to running managed EXEs as being a problem with Custom Actions and MSis, but no real definitive answers.
I have also tried just running a very simple .EXE with no dependencies as a custom action, and have had no luck there.
Being somewhat new to creating installer packages, it's very likely I'm either trying to do something that isn't supported, or missing something simple.
Thanks in advance for any pointers in figuring this out.
JT.
Unfortunately this could be a number of things. Firstly are you sure .net 3.5 is installed on the target box? On from that, can you actually run the exe fine on the target machine?
One other thing to note is that deferred actions run under the context of the system account, so if the exe requires access to a profile for any reason, this will cause it to fail. I had this very issue when trying to generate a certificate as part of my install. I was scratching my head for ages on this and in the end had to spawn PowerShell with the -RunAs switch which then ran a script to call the exe. Might be worth checking to see if the app runs fine under the system account (http://www.tech-recipes.com/rx/1288/how-to-run-applications-in-the-local-system-account-lsa/)

Deleting files and directories before installation of MSI

Our product was installed via InstallShield Setup over the years. I changed the installation to MSI (WiX) this year. Now the MSI should clean up the directory, which remains the same.
One custom action in the MSI I implemented to start the uninstallation of the old product:
<CustomAction Id="UninstallIS" Property="QtExecCA" Value=""[WindowsFolder]IsUn0407.exe" -f "[ProgramFilesFolder]\company\product\Uninst.isu"" Execute="deferred" />
<CustomAction Id="QtExecCA" BinaryKey="WixCA" DllEntry="CAQuietExec" Execute="deferred" Return="ignore" Impersonate="no" />
After the removal of the old product there are temporary files and some subdirectories that are different from client to client and are unknown to the InstallShield Setup, so I would try to delete them via the MSI.
Keeping the UAC in mind, I think that I can't use command-line commands to do this also the 'Remove File Table' is not useful here (to much unknown files and many directories).
What is a possible way to do this?
Thank You for any help!
You can use a Deferred custom action which has Impersonate flag set to "no". This way it will run under the local system account with full privileges.
The custom action can use custom code (for example an EXE or DLL) or a command line.
Please note that deferred custom actions can be scheduled only after InstallInitialize action in InstallExecuteSequence.
As a side-note, make sure you thoroughly test it. Deleting files from the target machine is very dangerous. You never know what you may end up deleting.