installer - How to set additional properties during RemoveExistingProducts -

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i using recommended way upgrade (use upgrade , upgradeversion detect old version of product , use removeexistingproducts after installinitialize

the thing is, during uninstall of existing product, need pass additional properties installer preserving existing database. there way that?

all product being removed via removeexistingproducts receives single property upgradingproductcode. property set match productcode of installer removing other product. if had condition against in installer being removed, can act accordingly. if not, need make upgradeversion onlydetect , block until it's gone, invoke removal manually, or similar workarounds.


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