New Post: How to do custom command line?

I'm very familiar with WSUS itself, but a newbie for WPP. I've successfully deployed several basic self-contained updates using WPP.

But how do I create and update for an exe that requires a custom command line parameters to make it run silently?

I've searched and I find lots of posts that talk about using custom command lines, but I can't find anything that tells me specifically how to create a custom command line.

I did check into using the "Custom Update" wizard in WPP, which looks like it will do what I need to do. But is that the only way to create an update to use a custom command line? Is there no way to just add command line parameters to a normal update?

Also, if I use the Custom Update wizard, or if there is indeed another easier way for normal updates, are there any caveats to be aware of regarding quote characters on the command line? My command line does require quotes.

One other idea I had... I do have a license for WinZip self-extractor full version where I can create packages "for software installation" (where it extracts the self-extracting .exe to the TEMP directory, runs a command line, then deletes the extracted contents from TEMP). I could encapsulate my program installer .exe inside the WinZip self-extractor and publish the WinZip .exe file. So WSUS would just run the WinZip .exe file which would still require no extra parameters and run silently, and the WinZip .exe would then extract the actual software install .exe and run the custom command line. Is there any reason that wouldn't work?

Thank you!