#841 Sorry for opening another installer issue.

This is low priority at the moment.

If you build the Windows Installer in a path containing spaces, the resulting installer creates folders in $INSTDIR which relate to the folder where the installer was built. So e.g. if your build is in "C:\Users\My User\jamulus", the installer creates a folder in $INSTDIR which look like this: "$INSTDIR\C\Users\My"

I think the problem is related to quoting in CMD. At the time of writing this, the error can be traced back to this + a few lines after: https://github.com/corrados/jamulus/blob/1ce54ba0566c9064939f88ea13f35999cb97ae61/windows/installer.nsi#L138
see commit 6aa10d6 if the line changed.

Maybe we could execute this line in PowerShell which allows better quoting?