Version info showed that GUI also should work for older LibO Versions (with installer.exe). I checked that for a 3.3. LibO, and GUI Installer did not offer an installation file in the folder. So I think Installer can only be used for later Versions with installer.msi? I already removed 3.3 compatibility info for GUI Installer 3.0, but general clarification seems to be required.
Here a small part of the code: this.openfile.Filter = "LibreOffice installation file|LibO*Win_x86_install_multi*.msi;*LibO-Dev*Win_x86_install*.msi;libreoffice*.msi"; So, .msi installers matxhing the following filters works: -LibO*Win_x86_install_multi*.msi -LibO-Dev*Win_x86_install*.msi -libreoffice*.msi So the msi installer of version 3.3 and 3.4 are supported. Your opinion?
Thank you for the code snippet, that shows that the problem is a real one. The problem is not that the GUI insaller does not recognize "LibO*Win_x86_install_multi*.msi", the problem is that there is no .msi installer, except you manually extract or except you already already did an installation and now have the installer.msi in the extracted files. Please see <https://wiki.documentfoundation.org/Installing_in_parallel#Version_3.4.x_or_older:> and <http://downloadarchive.documentfoundation.org/libreoffice/old/>, before 3.5 there was some installer.exe, we have installer.msi since 3.5 I removed the misleading hints from the existing versions. So this one is FIXED for now. May be you can add a solution for the old installer.exe in a future version? That might be interesting for some less experienced users who want to install an old version in parallel without having too much concerning server installations.