If your labels are being sent to the printer as multiple print jobs and you need to force it to a single print job, make this change in the registry:
1. Go to Start > Run > type regedit and click OK.
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wasp Technologies\Labeler\Options if you have a 32 bit version of Windows, or HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Wasp Technologies\Labeler\Options for 64 bit
3. Right click and select New > String Value, and name it OneUp
4. Right click OneUp and select Modify, and set the value to 1