This is great.
Though I am not sure why did you need to post-adjust XML.
You wrote
Wasn't it what you needed?
Though I am not sure why did you need to post-adjust XML.
You wrote
Language must be 1049 and Codepage....
So it already was:<ProductId="6f3...89c"Name="MyProduct"Language="1049"Codepage="windows-1251"Version="..."><PackageSummaryCodepage="windows-1251"Languages="1049,1033"Id="..."/>