Resolving Error Code 2738 During Install.
During the install of AutoTag, you may receive the following error message:
"The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2738."
Microsoft provides a fix for this error at https://blogs.msdn.microsoft.com/heaths/2007/05/31/windows-installer-errors-2738-and-2739-with-script-custom-actions/