Find GUID From MSI File

Question

How can I list the GUID of an installed program in Windows? Alternatively, is it easier to find the GUID if I have the MSI file?

I\'m looking through the MSI file w

Answer 1

My solution is that I wrote a small console app which returns ProductCode of any MSI file (name is passed as program argument). I'm doing it by reading the guid from .msi file itself. Basically I'm opening that msi file as a string and looking for a text started with "ProductCode", getting its index and taking 38-chars before that index position. Here is the screenshot: