 Another problem is that the NOP-sled requires a much larger amount of memory in which to hold a NOP-sled large enough to be of any use.This can be a problem when the allocated size of the affected buffer is too small and the current depth of the stack is shallow (i.e., there is not much space from the end of the current stack frame to the start of the stack).Despite its problems, the NOP-sled is often the only method that will work for a given platform, environment, or situation, and as such it is still an important technique.