Missing libraries after update

[andrii_tk]

Hello,

I have a problem when updating my app:
- v4.3.3.1146 (first install): worked fine.
- Update to v4.4.0.1156: some libraries are missing, especially essential RabbitMQ.Client.dll.

Both installers were built via CI on Jenkins, using the “Synchronize” feature. We don’t run manual sync each time; CI collects files and builds the project automatically.

I checked this article: https://www.advancedinstaller.com/user- ... uestion380

It suggests enabling “Always overwrite existing files.”
- Enabling it for the whole folder fixes the issue.
- But I also have files that should not be overwritten, and setting it at folder level blocks me from controlling behavior per file. So this feature is not helpful.

I understood what happened: one library was downgraded, which caused RabbitMQ.Client.dll to also be downgraded. However, I don’t understand why a downgrade leads to missing files — I would expect files to be always overwritten by default, regardless of version, as downgrades of libs may be intentional in future. Could you please help me find a reliable solution?

Log:

MSI (s) (14:A0) [08:13:36:844]: Executing op: ComponentRegister(ComponentId={F702FDE4-DD1B-4A17-A155-D74EBC9C2FE4},KeyPath=C:\Program Files (x86)\AnonCompanyName\AnonProductNameCore\RabbitMQ.Client.dll,State=3,,Disk=1,SharedDllRefCount=0,BinaryType=0)
...
MSI (c) (2C:BC) [08:10:14:968]: Disallowing installation of component: {F702FDE4-DD1B-4A17-A155-D74EBC9C2FE4} since the same component with higher versioned keyfile exists
MSI (c) (2C:BC) [08:10:15:336]: Disallowing installation of component: {998FD154-0513-443B-99FE-F12BC1C09886} since the same component with higher versioned keyfile exists
...

(Full installation log and AIP file was sent to support by email to support@advancedinstaller.com)

Environment:
- Advanced Installer: 20.9.1
- OS: Windows 10 / 11
- Project type: EXE installer (elevated permissions)

Thanks in advance!

[Eusebiu]

Hi,

I'm afraid that this is an old Windows Installer bug that has never been fixed as mentioned in the "Why do one or more files disappear after an upgrade is performed" FAQ that talks about the same issue.

This problem appears only when a file's version is decreased in the newer version of the package. This appears because Windows Installers sees that the file present on the machine has a higher version than the one from the package and wrongly sets a flag that the file from the package would not be installed anymore. Hence, the easiest workaround is to use the "Always overwrite existing file" option.

However, please note that you do not have to set that option on the entire folder, you can just set it on the problematic file. Do you encounter any issues if you set the option only on your missing libraries?

Best regarsd,
Eusebiu

[andrii_tk]

Hi Eusebiu,

Thank you for quick response.

We are using the Synchronize feature, which automatically selects the files to be installed. Your proposal makes sense and would help in this specific case, but what we are looking for is a sustainable solution.

We don’t want to manually check before each release which DLLs might have been downgraded and then mark them individually with “Always overwrite existing file.” Ideally, we’d like to configure this once and not worry about it again.

That’s why I initially thought enabling “Always overwrite existing file” at the folder level would be best. However, this also changes the behavior for files that we already configured manually with “Do not overwrite existing file.”

Is there a way to apply “Always overwrite existing file” only to synchronized files, or at the folder level without overriding existing per-file settings?

Thanks,
Andrii

[Eusebiu]

Hi Andrii,

Indeed, your scenario is not that simple. The easiest solution that I can think of is to set the "Always overwrite existing files" option for the folder first, then select the "Do not overwrite existing file" for each file that you do not want to overwrite. This way the later option will be kept for the files that you do not want to overwrite while all other files will be overwritten.

Let me know if this helps.

Best regards,
Eusebiu