On 2/28/2010 1:09 PM, Semion Prihodko wrote: > So how can I make a patch replacing two files in old installation which is > probably doesn't presume patches? Is there really no way to simply replace > two files? Thanks. > MSI doesn't support downgrades except via patching. If you didn't create the original installer, you'll have a very tough time building a patch for it. You also have to manage component GUIDs so MSI reference counting works. Basically, you're trying to do something MSI wasn't designed for.
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