MsiEnumRelatedProductsW function (msi.h)

The MsiEnumRelatedProducts function enumerates products with a specified upgrade code. This function lists the currently installed and advertised products that have the specified UpgradeCode property in their Property table.

Syntax

UINT MsiEnumRelatedProductsW(
  [in]  LPCWSTR lpUpgradeCode,
  [in]  DWORD   dwReserved,
  [in]  DWORD   iProductIndex,
  [out] LPWSTR  lpProductBuf
);

Parameters

[in] lpUpgradeCode

The null-terminated string specifying the upgrade code of related products that the installer is to enumerate.

[in] dwReserved

This parameter is reserved and must be 0.

[in] iProductIndex

The zero-based index into the registered products.

[out] lpProductBuf

A buffer to receive the product code GUID. This buffer must be 39 characters long. The first 38 characters are for the GUID, and the last character is for the terminating null character.

Return value

Remarks

See UpgradeCode property.

To enumerate currently installed and advertised products that have a specific upgrade code, an application should initially call the MsiEnumRelatedProducts function with the iProductIndex parameter set to zero. The application should then increment the iProductIndex parameter and call MsiEnumRelatedProducts until the function returns ERROR_NO_MORE_ITEMS, which means there are no more products with the specified upgrade code.

When making multiple calls to MsiEnumRelatedProducts to enumerate all of the related products, each call should be made from the same thread.

Requirements