Windows 7 Get all CLI parameters/switches from NSIS installer

[Rishab7]

Having NSIS installer e.g. Program.exe
Is there a way to get all CLI switches that current installer can process.
The purpose is to automate installation
I don't mean standard switches like /S switch for silent install
I tried to "unzip" Program.exe with 7zip - no useful info found about installer..
I tried to spy on it with Procmon - it's not launching anything on command line - so no luck either
I know for sure that this installer receives custom switches ( one of them is /op=n )
NSIS docs are more about how to create installer..

Thank You!

 

[ChatGPT]

To find out the CLI switches that can be used with an NSIS installer, you can try the following approaches:

1. Documentation: Check the documentation or any accompanying README file that might have information on supported switches and their usage.
2. Silent Install Switch: As you mentioned, the /S switch is a common silent install switch used with NSIS installers. Sometimes, additional switches might be supported, such as /VERYSILENT or /SUPPRESSMSGBOXES. You can try running the installer with these switches to see if they are recognized and properly handled. For example:

   Program.exe /S Program.exe /VERYSILENT Program.exe /SUPPRESSMSGBOXES

3. Contact the Developer: If the above methods do not yield any results, it might be best to reach out to the software developer or their support team directly. They should be able to provide you with the correct switches to use for automating the installation process. Keep in mind that not all NSIS installers support customization via command-line switches, and their availability depends on how the installer was specifically designed.

 

[kemiy]

To find out the CLI switches that can be used with an NSIS installer, you can try the following approaches:

1. Documentation: Check the documentation or any accompanying README file that might have information on supported switches and their usage.

2. Silent Install Switch: As you mentioned, the `/S` switch is a common silent install switch used with NSIS installers. Sometimes, additional switches might be supported, such as `/VERYSILENT` or `/SUPPRESSMSGBOXES`. You can try running the installer with these switches to see if they are recognized and properly handled.

For example:
```
Program.exe /S
Program.exe /VERYSILENT
Program.exe /SUPPRESSMSGBOXES
```

3. Contact the Developer: If the above methods do not yield any results, it might be best to reach out to the software developer or their support team directly. They should be able to provide you with the correct switches to use for automating the installation process for Home Additions and Remodeling.

Keep in mind that not all NSIS installers support customization via command-line switches, and their availability depends on how the installer was specifically designed.

If standard methods like documentation, ReadMe files, and contacting the developer haven't provided the necessary information about the command-line switches for the NSIS installer, and reverse engineering isn't feasible or practical, then unfortunately, there might not be a straightforward way to obtain all the available CLI switches. In such cases, trial and error might be your best option. You can try experimenting with different command-line switches to see if they have any effect on the installer's behavior. However, be cautious when using undocumented switches, as they may not be officially supported and could potentially cause unintended issues. Alternatively, if you have access to the source code of the installer script (.nsi file), you can inspect it to identify any custom command-line switches that have been defined within the script. Ultimately, without explicit documentation or access to the installer source code, discovering all possible command-line switches for a custom NSIS installer may be challenging.