Situation: we had recently repackaged a new verson of an applicaiton and though the ucn path had changed, the APP-V name was identical.
Error: The Application Virtualization Client cannot use the OSD file specified because the GUID attribute for the CODEBASE element changed (rc 0C403B04-00001004).
Solution: under sftcmc.msc the properties of the app showed the OSD file pointing to the previous version of the published apps directory
On the server I opened the cmd prompt as ‘run as administrator’ and did the following
list all apps: sftmime query obj:app /short
Remove the application: sftmime.exe remove app:”applicationName” /complete