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We are using visual studio 2015 with wix 3.10.2015.

when installing on a win7 32 bit we have no issues

when installing on XP we get the following error when calling the custom action in the dll.

Action start 16:03:50: MyCustomAction.
Action ended 16:03:51: MyCustomAction. Return value 3.
Action ended 16:03:51: INSTALL. Return value 3.

here is the declaration from the customAction.cpp file :

extern "C" _declspec(dllexport) UINT __stdcall MyCustomAction(MSIHANDLE hInstall);

extern "C" UINT __stdcall MyCustomAction(MSIHANDLE hInstall)
{
    HRESULT hr = S_OK;
    UINT er = ERROR_SUCCESS;
    // commented out code 
    return WcaFinalize(er);
}

wix declaration: 

<InstallExecuteSequence>
            <Custom Action="myCustomAction" After='AppSearch' ></Custom>
</InstallExecuteSequence>

Any ideas ? clues ? directions would be extremely appreciated

Yan Sklyarenko
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oren
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1 Answers1

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Most probably your Visual C++ project is built with "modern" toolset and you should use the "legacy" toolset version that supports Windows XP.

Configuring C++ 11 Programs for Windows XP

Jozef Izso
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