Inno Setup Check If Already Installed
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- Inno Setup Check If Installed
- Inno Setup Check If Already Install
- Inno Setup Check If Already Installed
Hello, I am trying to install ASPI driver to a certain PC. Since different PC hardware and OS requires different installation techniques, I wish to use inno setup to check the OS and install the correct command. How to check if a port is available during installation using Inno Setup? I am currently working on Installer in inno setup and run bat file which check the OS version and install the window installer 4.5 if OS is window xp,now i have a problem i want to detect that is window installer 4.5 is already. 44 Inno Setup Help. Pages that Setup has already determined should be skipped (for example, wpSelectComponents in an install containing no components). A check function isn't called if Setup already determined the entry it shouldn't be processed.
What I really want to do is have Inno Setup uninstall a component, if it's unchecked in a subsequent run. But, if I'm not mistaken, that is not possible in Inno Setup (actually, correct me, if I'm wrong on this).
So, instead I want to make check function to see if a component is installed, so I can hide it during subsequent runs. I'm not sure where else to get that info other than the Inno Setup: Selected Components under HKLMSOFTWAREMicrosoftWindowsCurrentVersionUninstall[AppName]_is1.
Now the problem is my Inno Setup: Selected Components is as,as2,as3,bs,bs2,bs3.
How can I detect as, without detecting as2 or as3?
1 Answer
Indeed, Inno Setup does not support uninstalling components.
For a similar question (and maybe better), see:
Inno Setup: Disable already installed components on upgrade
For checking of installed components, I'd rather suggest you to check for existence of files corresponding to the component.
Anyway, to answer your actual question: If you want to scan the Inno Setup: Selected Components entry, you can use this function:
Inno Setup Check If Installed
Note that the uninstall key can be present in HKCU (not in HKLM) under certain circumstances.