When you try to upgrade or remove PureMessage for Microsoft Exchange, you receive the error
Error 1603 - 'Error applying transforms. Verify that the specified transform paths are valid'.
This error message refers to a file called 1033.MST.
First seen in
PureMessage for Microsoft Exchange
The temp folder has been cleared out sometime in the past, and this has since removed a file called 1033.MST which is mentioned in the registry.
What To Do
You will need to edit the Windows registry.
- Open Regedit
- Browse to
- Right-click the value 'Transforms' and select 'Modify'. This displays a value similar to:
- Delete the contents of the Value data field.
- Run the upgrade or uninstall again.