Inno Setup Check If Already Installed

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Don't forget to check out the Inno Setup newsgroups. Supports creation of a single EXE to install your program for easy online distribution. I need help using the FileExists function in Inno Setup. How to check if file exists in Inno Setup. I need help using the FileExists function in Inno Setup.

Example: DestName: 'MYPROG2.EXE' Specifies a list of patterns to exclude, separated by commas. This parameter cannot be combined with the external flag. Patterns may include wildcard characters ('*' and '?'

Note that unlike the Source parameter, a simple Unix-style pattern matching routine is used for Excludes. Dots in the pattern are always significant, thus '*.*' will not exclude a file with no extension (instead, use just '*'). Also, question marks always match exactly one character, thus '?????'

Will not exclude files with names less than five characters long. If a pattern starts with a backslash (' ') it is matched against the start of a path name, otherwise it is matched against the end of a path name. Thus ' foo' will only exclude a file named 'foo' at the base of the tree. On the other hand, 'foo' will exclude any file named 'foo' anywhere in the tree. The patterns may include backslashes.

'foo bar' will exclude both 'foo bar' and 'subdir foo bar'. Temescal ' foo bar' will only exclude 'foo bar'. Example: ExternalSize: 1048576; Flags: external You should not use this parameter in any new scripts. This parameter was deprecated and replaced by flags in Inno Setup 3.0.5: CopyMode: normal -> Flags: promptifolder CopyMode: alwaysskipifsameorolder -> no flags CopyMode: onlyifdoesntexist -> Flags: onlyifdoesntexist CopyMode: alwaysoverwrite -> Flags: ignoreversion CopyMode: dontcopy -> Flags: dontcopy What was CopyMode: alwaysskipifsameorolder is now the default behavior. (The previous default was CopyMode: normal.) Specifies additional attributes for the file. This can include one or more of the following: readonly, hidden, system, notcontentindexed. If this parameter is not specified, Setup does not assign any special attributes to the file.

Example: Attribs: hidden system Specifies additional permissions to grant in the file's ACL (access control list). It is not recommended that you use this parameter if you aren't familiar with ACLs or why you would need to change them, because misusing it could negatively impact system security.

For this parameter to have an effect the file must be located on a partition that supports ACLs (such as NTFS), and the current user must be able to change the permissions on the file. In the event these conditions are not met, no error message will be displayed, and the permissions will not be set. This parameter should only be used on files private to your application. Never change the ACLs on shared system files, otherwise you can open up security holes on your users' systems. The specified permissions are set regardless of whether the file existed prior to installation. This parameter can include one or more space separated values in the format.

Inno Setup Check If File Exists

The following access types are supported for the [Files] section: Grants 'Full Control' permission, which is the same as modify (see below), but additionally allows the specified user/group to take ownership of the file and change its permissions. Use sparingly; generally, modify is sufficient. Grants 'Modify' permission, which allows the specified user/group to read, execute, modify, and delete the file. Grants 'Read & Execute' permission, which allows the specified user/group to read and execute the file. Example: Flags: isreadme Remarks If a file already exists on the user's system, it by default will be replaced according to the following rules: • If the existing file is an older version than the file being installed (as determined by the files' version info), the existing file will be replaced. • If the existing file is the same version as the file being installed, the existing file will not be replaced, except if the replacesameversion flag is used and the content of the two files differs.

Inno Setup Check If Windows 10

• If the existing file is a newer version than the file being installed, or if the existing file has version info but the file being installed does not, the existing file will not be replaced. • If the existing file does not have version info, it will be replaced. Certain flags such as onlyifdoesntexist, ignoreversion, and promptifolder alter the aforementioned rules.

Inno Setup Check If .net 4 Is Installed

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.CHM (HTML Help) file is deleted, any.CHW (generated index) file is automatically deleted.

This entry was posted on 2/20/2019.