I use one as I am mining LTC, so I need to set the two variables beforehand. But the temp bat file seems to mess up if there are spaces in the temp config (i.e. CGWatcher) path. e.g:
Original Bat File:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
"D:\Windows Folders\Downloads\Compressed\cgminer-3.3.4-windows\cgminer.exe" --config "D:\Windows Folders\Downloads\Compressed\cgminer-3.3.4-windows\cgminer.conf"
Temp Bat File:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
"D:\Windows Folders\Downloads\Compressed\cgminer-3.3.4-windows\cgminer.exe" Folders\Downloads\Compressed\CGWatcher-1.2.7\temp.conf --api-listen --api-allow W:127.0.0.1 --api-port 4029 --config "D:\Windows Folders\Downloads\Compressed\CGWatcher-1.2.7\temp.conf"
What are the variables you're using? I couldn't find anything that jumped out as the reason this would happen, but admittedly this code needed some cleaning up so I did make some changes and tested using the filenames you've listed. I just uploaded this as version 1.2.8.1. Please download and try this version and see if the problem still exists. If it does, let me know what variables you're using and where so I can keep digging.
Thanks
EDIT: I had hard-coded a path while trying to reproduce this bug and forgot to remove it before uploading. It was only online for about 30 minutes at most, so if you updated to 1.2.8.1 within the first ~45 minutes of release please download again. This includes any auto-update that occurred during this time. I apologize for the inconvenience.