One common question packagers often ask themself is what type of installer to use when patching an application.

In the tech industry, there's often a dilemma about which technology to use for patches. Specifically, when an ISV (Independent Software Vendor) creates an MSI for the first time and updates come up, they must choose between MSP and MSI options.

Depending on whether we're installing or updating an application, we need to use different types of files. For instance, we use MSI files when installing Windows applications, but if we want to make a small update, we can use an MSP file.