Question

The regsvr32 utility suppresses standard output. For example:

STDAPI DllRegisterServer(void)
{
    std::cout << "RegisterServer\n";
    return S_OK;
}

When executed with:

regsvr32 my.dll

nothing appears in standard ouput (the successful message box is displayed). Is there anyway to make standard output appear?

Answer 1

regsvr32.exe it a Windows Application. It does not own a console.
printf or std::cout won’t show any text.

If you insist to show something, you can create console yourself.

call the following lines before your text output.

AllocConsole();
freopen("CONOUT$", "w+t", stdout);