3 replies to this topic

[Donald Bristol]

Can anyone offer any suggestion on how to terminate an installation if a condition fails.

Background information:
My installation runs silently, authenticate a code that a user enters.  If the code is invalid the installation should terminate.  This does not happen in my case, this is the  code that I'm using.

begin
      if productcode != validValue then

      WriteLine( hwndLog,"Installation failure code03");
     abort;
....  endif;
end;

[Stefan Krueger]

Try this:
return ERROR_INSTALL_FAILURE;

[Ian Blake]

1) Return from a custom action with the value ERROR_INSTALL_FAILURE

2) Use a type 19 Custom Action to generate error

3) Use process message to send error message eg.

hError=MsiCreateRecord(2);
MsiRecordSetString(hError, 0, NULL);
MsiRecordSetInteger(hError, 1, MyErrorCode);
MsiProcessMessage(hMsi, INSTALLMESSAGE_FATALEXIT,  hError);
return  ERROR_INSTALL_FAILURE;

MyErrorCode is an index into the error table. hMsi is the handle of the installer object.

4) Validate ealy and use the install conditions.

Note a possibly better way to record log messages is to use MsiProcessMessage to record a log message in the msi log eg.

MSIHANDLE hInfo;
hInfo = MsiCreateRecord(1);
MsiRecordSetString(hInfo, 0, "Something Interesting");
MsiProcessMessage(hMsi, INSTALLMESSAGE_INFO, hInfo);
MsiCloseHandle(hInfo);

Hope this helps