Create msg outlook file from folder

Question

I have a folder with content like this

More specific:

    __nameid_version1.0
        __substg1.0_00020102
        __substg1.0_00030102
        __substg1.0_00040102
        __substg1.0_10100102
    __substg1.0_001A001E
    __substg1.0_0037001E
    __substg1.0_10090102
    __substg1.0_3FF8001E
    __substg1.0_3FF90102
    __properties_version1.0
    __recip_version1.0_#00000000
        ...
    __attach_version1.0_#00000000
        ...
    __attach_version1.0_#00000001
        ...

This are files. With a little investigation I found that this is a message content of a outlook email.

It's posible to extract a msg file with 7zip ( I already try it).

How I can pack the compound files in msg file so I can open them with outlook?

Answer 1

.msg files are compound files.

You should use compound file library like Compound File .NET or MSG .NET

Answer 2

Do you mean you are trying to pack multiple messages into a single MSG file? You cannot do that.