Equivalent of /dev/urandom on Windows?

Question

My application would like to get a random number, preferably with entropy if available, but does not need cryptographic quality, and would like to do ensure that the call do

Answer 1

You could wait for one good seed full of entropy and follow GMasucci advice to pre-generate a long list of random numbers.

Unless your system is already compromised it seems that a good seed it's good enough to generate a series of non-related numbers as discussed in http://www.2uo.de/myths-about-urandom/

From the discussion I get that a continuous feed of ("true"/"fresh") random numbers it's only needed if your system state (your sources of entropy are known and the attacker knows their current state) it is compromised at some point. After feeding your block cypher more randomness, the predictability of its output will get lower.

Source of seeds? Two or more pieces of trusted software that are less likely to be already compromised. I try to blur out the predictability of the functions that use time functions as seed: local rand_function() + some variable delay + mysql's rand(). From there, a list of pseudo-random numbers generated by some good library.