c++ - COM registration : handle ProgID for two versions of software -



c++ - COM registration : handle ProgID for two versions of software -

i creating new version of software , there requirement new version(version 2) of software run alongside previous software (version 1)

currently, when version 1 of software uninstalls, removes progid in hkey_classes_root\progid, impacts version 2 running properly.

my questions:

do need create new progid version 2 ? there numerous progid in software. or should utilize version independent progid ? clsidfromprogid() function works version independent progid ? msdn not seems it. or code should not utilize clsidfromprogid() clsid ?

please advice proper way handle progid different version of software ?

thank you

c++ com registry

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