Syscall index: 0x1558
Function signature: int MCSDelVar2(unsigned char* dir, unsigned char* item)
Deletes a variable inside a directory from the main memory.\
- dir - The name of the directory where the file to delete is located;
- item - The name of the item to delete.\
- 0 for success;
- 0x40 if dir or the item in dir does not exist.