Originally Posted by BahBahBlackShee
Can you post a screenshot of the error you get? The program sould work fine unless something your running on your computer is conflicting with it (unlikely). More then likely though, your not following the instructions posted.
You must open the original npcdata.txt file in WordPad and choose Save As... MS-DOS Format. When done correctly, the npcdata.txt file will go from 7.xxMB to about 3.xxMB, even though it looks entirely the same in WorPad, its now in a different format.
Make sure the MS-DOS Format npcdata.txt (3.xxMB) AND the NpcdataControl.exe are in the same directory. Run the exe, change the settings to your likeing and hit the top middle button. You'll get a file named something like npcdata_expXX_spXX_adenaXX_dropXX_reXX.txt and it will still only be around 3.xxMB.
Next, open that new 3.xxMB npcdata_expXX_spXX_adenaXX_dropXX_reXX.txt file in WordPad, and this time choose Save As... Unicode Text Document. The new file sould now be around 7.xxMB. Put that new file in the scripts folder of your server and rename to npcdata.txt. Reset your server and thats all.