Silent install flash 18.0.0.209 with error 1722

Hi,

i have i script for silent install. Previously versions works fine with them. No i have error.

in log is this : Error 1722.There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor. Action NewCustomAction1, location: C:\Users\XXX\AppData\Local\Temp\InstallAX_18_0_0_209.exe, command: -install -msi

When i close Internet explorer, instalation is successful. Is there solution how to install flash without closing IE?

thanks for reply

Windows 7 x64, IE 11