Inno Setup Checking for running process

Question

I have a Inno Setup project that I want to check if the application is actually running before uninstalling it. I tried many ways but it all fails silently, when running in Windows 7. For example the following script that checks for `notepad.exe` process using `psvince.dll` always returns `false` regardless of Notepad being running or not. I used `psvince.dll` in a C# app to check, if it works under Windows 7 and it works without any problem. So my best guess is that installer can not run correctly with UAC enabled. ``` [Code] function IsModuleLoaded(modulename: String): Boolean; external 'IsModuleLoaded@files:psvince.dll stdcall'; function InitializeSetup(): Boolean; begin if(Not IsModuleLoaded('ePub.exe')) then begin MsgBox('Application is not running.', mbInformation, MB_OK); Result := true; end else begin MsgBox('Application is already running. Close it before uninstalling.', mbInformation, MB_OK); Result := false; end end; ```

Accepted Answer

Are you using Unicode Inno Setup? If you are, it should say

```
function IsModuleLoaded(modulename: AnsiString): Boolean;
```

since psvince.dll isn't a Unicode dll.

Also the example checks for epub.exe, not notepad.exe.

Inno Setup Checking for running process

Solution

Problem