001082: You do not have permission to write to the custom transformation folder.


All custom geographic transformation files are saved with a .gtf extension and stored in the Documents and Settings folder at ...\Documents and Settings\<user>\Application Data\ESRI\<product>\ArcToolbox\CustomTransformations. If the Application Data folder is read-only or hidden, the output is stored in the system temp folder. The tool will fail if it encounters a write-protected folder.


Ensure that the output location is not write protected. Change permissions through operating system commands.