How reliable is the Random function in Delphi

Question

I am writing a program which write statistical tests in Delphi (must be Delphi) and I\'ve heard that the Random functionality is somewhat odd. You have to call randomize to

Answer 1

If they didn't change the implementation since I analyzed it(Delphi 4 IIRC), the Delphi PRNG is implemented like this:

Randseed:=int32(Randseed*$08088405)+1
result:=Randseed*Range shr 32

(Pseudocode/assume the multiplications are on arbitrarily large integers)