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<blockquote data-quote="ltfearme" data-source="post: 738615" data-attributes="member: 52219">Dukus, does MPEI installer have the ability to mark a file as Shared? What I mean by this, is if two or more installers share a common component?e.g.Maya installs SkinTranslations.dllBlackGlass installs SkinTranslations.dllIf one of those gets uninstalled, then the skin functionality is broken for the other as it depends on translations.Typically in a MSI setup when a component is marked as Shared it creates a reference count in the registry:HKLM\Software\Microsoft\Windows\CurrentVersion\SharedDlls.How this works is like this:a DWORD is created for the file that is shared e.g.C:\Program Files\Team MediaPortal\MediaPortal\plugins\Process\SkinTranslations.dllIf the value exists before installation, then the value is incremented. If it does not exist then its set to a count of 1 with the exception if the file existed on disk prior to installation in which case it will be set to 2.If the installer removes a file, then it checks if there is a shareddll reference and decrements the count, if it gets set to 0 the entry is removed and the file/component is removed. If the count is greater than one then the file remains.If we make this change, all installers weather it be MSI, NSIS, MPEI can all live in harmony <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /></blockquote>

[QUOTE="ltfearme, post: 738615, member: 52219"] Dukus, does MPEI installer have the ability to mark a file as Shared? What I mean by this, is if two or more installers share a common component? e.g. Maya installs SkinTranslations.dll BlackGlass installs SkinTranslations.dll If one of those gets uninstalled, then the skin functionality is broken for the other as it depends on translations. Typically in a MSI setup when a component is marked as Shared it creates a reference count in the registry: HKLM\Software\Microsoft\Windows\CurrentVersion\SharedDlls. How this works is like this: a DWORD is created for the file that is shared e.g. C:\Program Files\Team MediaPortal\MediaPortal\plugins\Process\SkinTranslations.dll If the value exists before installation, then the value is incremented. If it does not exist then its set to a count of 1 with the exception if the file existed on disk prior to installation in which case it will be set to 2. If the installer removes a file, then it checks if there is a shareddll reference and decrements the count, if it gets set to 0 the entry is removed and the file/component is removed. If the count is greater than one then the file remains. If we make this change, all installers weather it be MSI, NSIS, MPEI can all live in harmony :) [/QUOTE]

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