> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > André Pönitz > Sent: Thursday, December 21, 2006 3:20 AM > To: wix-users@lists.sourceforge.net > Subject: Re: [WiX-users] Installed: Local; Request: Absent; > Action: Null ? > > Arnette, Bill wrote: > > Non-Windows Installer installers use the SharedDlls registry > > key to refcount the usage of common/shared dlls. By default > > Windows Installer will only increment that refcount if it > > already exists so that the other installer will track the > > refcount properly if a WI installer installs the same file. > > Windows Installer also maintains its own refcount for > > components it tracks elsewhere. You can force Windows > > Installer to create a SharedDLLs entry if it doesn't already > > exist with the msidbComponentAttributesSharedDllRefCount > > attribute on a component. > > So this is what the SharedDllRefCount='yes' attribute means... > > Let me try to get the consequences for me straight: if I have > an old installer using the SharedDll mechanism and new installers > are msi based (and will stay so for the forseeable future) I > would not have to explicitly use SharedDllRefCount='yes' and > it'd still work if I install my newer version in parallel (yes, > we do that...) to the older version and I could deinstall > in arbitrary order.
As I understand it, yes; theoretically :) > > It would not work, however, if I installed the new version first > and than the older one in parallel. But as that's not a > scenario I need to support, I'd be ok without using the > SharedDllRefCount='yes' attribute. > > Did I get that right? Right, because unless you explicitly tell MSI to use SharedDllRefCount, the other/older installer is unaware that the MSI-installed product/version is sharing that file. > > > So what that log indicates is that a non-WI installer > > installed that file before your product was installed and > > that since the SharedDlls refcount will not go to 0 after > > your product is uninstalled, the file will not be removed so > > that the other product is not broken. > > Ok, that's probably exactly what happens as I have an > older version installed (or at least not fully uninstalled) > > Thanks for the explanation, > Andre' Glad I could help. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
