I fixed my problem. To run the batch file I just had to use the CMD and type "H:\Blockland\RunMe.bat" because windows explorer decided to suck at its job. After that I found out the batch file had this in it
start BlocklandLauncher.exe -profilePath .
It should have had
start H:\Blockland\BlocklandLauncher.exe -profilePath .
So I rewrote it and it worked. Yey.