When an existing file needs to be replaced, and it is in use locked by another running process, Setup will by default display an error message. When this happens, the user will be prompted to restart their computer at the end of the installation process. NOTE: This flag has no effect if the user does not have administrative privileges. Therefore, when using this flag, it is recommended that you leave the PrivilegesRequired [Setup] section directive at the default setting of admin.
If it fails to set the compression state for any reason for example, if compression is not supported by the file system , no error message will be displayed. Specifies that the file is shared among multiple applications, and should only be removed at uninstall time if no other applications are using it. Most files installed to the Windows System directory should use this flag, including. BPL, and. DPL files. Each time the file is installed, the reference count for the file is incremented.
This happens regardless of whether the installer actually replaces the file on disk. When an application using the file is uninstalled, the reference count is decremented. If the count reaches zero, the file is deleted with the user's confirmation, unless the uninsnosharedfileprompt flag is also specified.
If Setup is run more than once, the reference count for the file will be incremented more than once. The uninstaller will decrement the reference count the same number of times, however, so no references are leaked provided the UninstallLogMode [Setup] section directive isn't changed from its default setting of append. This flag instructs the compiler to digitally sign the original source files before storing them. Ignored if [Setup] section directive SignTool is not set. This flag instructs the compiler to digitally sign the original source files before storing them, but only if the files are not already signed.
This flag instructs the compiler -- or Setup, if the external flag is also used -- to silently skip over the entry if the source file does not exist, instead of displaying an error message.
When solid compression is enabled, this flag instructs the compiler to finalize the current compression stream and begin a new one before compressing the file s matched by Source. This allows Setup to seek to the file instantly without having to decompress any preceding files first.
May be useful in a large, multi-component installation if you find too much time is being spent decompressing files belonging to components that weren't selected.
This flag instructs the compiler to compress the found files sorted by extension before it sorts by path name. This potentially decreases the size of Setup if solid compression is also used. This flag instructs the compiler to compress the found files sorted by name before it sorts by path name. If sortfilesbyextension is also used, files are first sorted by extension. When uninstalling the shared file, automatically remove the file if its reference count reaches zero instead of asking the user.
Must be combined with the sharedfile flag to have an effect. When uninstalling the file, remove any read-only attribute from the file before attempting to delete it. When this flag is used and the file is in use at uninstall time, the uninstaller will queue the file to be deleted when the system is restarted, and at the end of the uninstallation process ask the user if they wants to restart.
This flag can be useful when uninstalling things like shell extensions which cannot be programmatically stopped. Note that administrative privileges are required for this flag to have an effect.
Never remove the file. This flag can be useful when installing very common shared files that shouldn't be deleted under any circumstances, such as MFC DLLs. Note that if this flag is combined with the sharedfile flag, the file will never be deleted at uninstall time but the reference count will still be properly decremented. If a file already exists on the user's system, it by default will be replaced according to the following rules:.
Certain flags such as onlyifdoesntexist , ignoreversion , and promptifolder alter the aforementioned rules. If Setup is unable to replace an existing file because it is in use by another process, it will make up to 4 additional attempts to replace the file, delaying one second before each attempt.
If all attempts fail, an error message will be displayed. Setup registers all files with the regserver or regtypelib flags as the last step of installation. However, if the [Setup] section directive AlwaysRestart is yes , or if there are files with the restartreplace flag, all files get registered on the next reboot by creating an entry in Windows' RunOnce registry key. When files with a. HLP extension Windows help files are uninstalled, the corresponding. GID and. FTS files are automatically deleted as well.
Similarly, when a. Special-purpose Translates to the window handle of the Setup wizard window. This handle is set to '0' if the window handle isn't available at the time the translation is done.
The internal name of the selected language. See the [Languages] section documentation for more information.
The full pathname of the uninstall program extracted by Setup, e. This constant is typically used in an [Icons] section entry for creating an Uninstall icon. It is only valid if Uninstallable is yes the default setting. The name and organization, respectively, that Windows is registered to. This information is read from the registry.
The name, organization and serial number, respectively, that the user entered on the User Information wizard page which can be enabled via the UserInfoPage directive. Typically, these constants are used in [Registry] or [INI] entries to save their values for later use. The name of the user who is running Setup or Uninstall program as returned by the GetUserName function.
The log file name, or an empty string if logging is not enabled. The following is the list of supported constants. Normally named "Fonts" under the Windows directory. Also see IsDotNetInstalled. Shell Folder Constants Inno Setup supports another set of directory constants, referred to as shell folder constants. The "common" constants refer to the All Users profile.
There is no common Favorites folder. There is no common Send To folder. Auto Constants Besides the "common" and "user" constants, Inno Setup also supports "auto" constants. It is recommended you always use these "auto" constants when possible to avoid mistakes. Administrative Non administrative autoappdata commonappdata userappdata autocf commoncf usercf autocf32 commoncf32 usercf autocf64 commoncf64 usercf autodesktop commondesktop userdesktop autodocs commondocs userdocs autofonts commonfonts userfonts autopf commonpf userpf autopf32 commonpf32 userpf autopf64 commonpf64 userpf autoprograms commonprograms userprograms autostartmenu commonstartmenu userstartmenu autostartup commonstartup userstartup autotemplates commontemplates usertemplates.
I have created an installer using innosetup. How to make installer to identify in which directory the app has been installed and make the patch installer to work.
If I unterstand you correctly you are talking about the setuo for your own application. It's not necessary because its default value is 'yes' anyway. But if the AppName or AppId changes in your new version, there is no way to find it in the registry.
A changing AppId is likely if you use a new guid for every setup. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to find installed directory in inno setup? Ask Question. Asked 1 year, 10 months ago.
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