Teamviewer v15 :
https://download.teamviewer.com/download/TeamViewerPortable.zip
Teamviewer v14.7.48507 :
https://download.teamviewer.com/download/version_14x/TeamViewerPortable.zip
Teamviewer v13.2.36221 :
https://download.teamviewer.com/download/version_13x/TeamViewerPortable.zip
Teamviewer v12.0.259024 :
https://download.teamviewer.com/download/version_12x/TeamViewerPortable.zip
Teamviewer v11.0.259037 :
https://download.teamviewer.com/download/version_11x/TeamViewerPortable.zip
Teamviewer v10.0.259051 :
https://download.teamviewer.com/download/version_10x/TeamViewerPortable.zip