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Level 4

Error 1721 - Basic MSI project - Silent install

Hello everyone ,

I am trying a silent install for Basic MSI project . I am running the following command for silent install .

setup.exe /s /v"/qn /l*v c:\msilog.txt"

So I am checking the log file "msilog.txt" . I found this error message :

Error 1721.There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: AddContact

AddContact is an exe file that I am calling during both silent and normal install

Note : This installation works perfectly fine in normal or UI mode . I am getting this error only during silent install

Does anyone know what this error means and how can it be resolved??? Any help is appreciated. Thanks in advance.
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(2) Replies
Level 8

The problem is with your command and the quotes you are providing. can you send some more details.
use this in your script :
LaunchAppAndWait("Setup.exe" , "/s /v"/qn", LAAW_OPTION_WAIT)
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Level 4

Its a Basic MSI project . All the custom action are VB scripts . I cant run an Installscript command that you have specified...

Note : I am gettin 1721 error only for silent install
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