Hi,
mixing the installers isn't a good idea. Currently the .exe setup does not take care about an existing MSI installation.
The MSI is normally the right choice to distribute in networks and the exe is better for none distribution.
If you install the exe, you have to uninstall the msi first.
Can you tell me what problems you have with the MSI version?
We love MSI because it is easy to deploy with Active Directory Group Policy. We deploy 4.9 with GPO (GroupPolicies). Now we create a new GPO for PDF24 6.0.1 and deploy it with AD GPO but clients have old Version 4.9. I think it's a problem because PDF24 is loaded and in use?
Can I send a screenshot from the entry in control panel Program und functions?