MSI upgrade with Powershell /DSC -
i able uninstall (ensure = "absent") or install product (ensure = "present"). however, if create new version of same product, comes same message - "already installed".
does mean way upgrade uninstall / install?
it sounds msi creating. create sure you're changing product code each version:
what productcode in msi package?
the product code unique guid of identifying application or product release; in other words, different versions , languages of product must have different product codes. http://msdn.microsoft.com/en-us/library/aa370854(vs.85).aspx. also, productcode can used query feature state, , product state. example, installer api "msiqueryfeaturestateex()" , "msiqueryproductstate()", etc.
powershell dsc
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