guest module of teamviewer does not start

PeterA

Hello community, with me starts the guest module of teamviewer not recently correct (Operating system Windows 7.). The process Teamviewer.exe * 32 is started, but unfortunately nothing happens afterwards. I did a virus check a few days ago. However, since it is the guest module, there are no installation files that could be affected. Does anyone have an idea what could be the reason? Thanks in advance for your support.