Summary

Symptoms

After installing Service Pack 1, when Microsoft .NET Framework 4.5 Full or Microsoft .NET Framework 4.5 Web Prerequisite is selected to be downloaded in from within the InstallShield 2012 Spring IDE, the following error is encountered:

The download failed; make sure you are running as Administrator, and that your machine is connected to the Internet. Would you like to try again?

The checksum of file dotnetfx45_full_x86_x64 is incorrect. Please try downloading the Merge Module or Object again

Cause

The checksum specified in the Prerequisite .prq file for the dotnetfx45_full_x86_x64.exe file incorrectly reflects the checksum for the beta version of the .NET redistributable.

Resolution

1. From the attachments section of this article, download the file containing the hot fix, public_ IOA-000074812.zip.
2. Locate the InstallShield SetupPrerequisites folder, <ISProductFolder>\SetupPrerequisites. By default, this location is:

   C:\Program Files\InstallShield\2012Spring\SetupPrerequisites

   C:\Program Files\InstallShield\2012Spring SAB\ SetupPrerequisites

3. Uncompress the hot fix file, and copy the updated prerequisites files to <ISProductFolder>\SetupPrerequisites
4. Rebuild the InstallShield projects that include this Prerequisite as a Redistributable.

Additional Information

This problem is being tracked internally by issue #IOA-000074812 and will be resolved in a future version of InstallShield