use this with my teamviewer:// protocol hander

teamviewer.bat

@echo off

REM place this in C:\ and install teamviewer.reg below. Then you should be able to 
REM openteamviewers from the webbrowser with teamviewer://1234

set protocolString=%1
REM uncomment below for testing
REM set protocolString="teamviewer://795143153"

set protocolString=%protocolString:"=%

if "%protocolString:~22,1%"=="/" goto sub_sixtyfour 

:sub_normal
echo normal
set protocolString=%protocolString:~13,10%
goto:end_setting


:sub_sixtyfour
echo sixty four
set protocolString=%protocolString:~13,9%

:end_setting
echo finished setting vars


echo %protocolString%

REM you may need to change this location
"C:\Program Files (x86)\TeamViewer\Version7\TeamViewer.exe" -i %protocolString% --Password hard24get
pause

teamviewer.reg

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\teamviewer]
@="URL:teamviewer teamviewer"
"URL Protocol"=""

[HKEY_CLASSES_ROOT\teamviewer\DefaultIcon]
@="Teamviewer.exe,1"

[HKEY_CLASSES_ROOT\teamviewer\shell]

[HKEY_CLASSES_ROOT\teamviewer\shell\open]

[HKEY_CLASSES_ROOT\teamviewer\shell\open\command]
@="\"C:\\teamviewer.bat\" \"%1\""