how to call shell command in script

[forcet]

How can I run the command like msiexec.exe /I "C:\path to msi\someMSIFile.msi"

in script.

another question is how to call custom action in script. is there a built-in method?

Thanks.

[ChandanOmkar]

you can run using the enbuilt function LaunchAppAndWait().

[forcet]

I used the LaunchApplication() method, it seems LaunchAppAndWait is more neat, thank u.

[Reureu]

As for calling custom action from a script, you can use MsiDoAction(...);
Don't forget to read the help library about the actions you can/cannot call.

[forcet]

Thanks to @Reureu.:)