CreateProcessAsUser fails on Windows XP with System error 233

Today I fixed one bug that was very hard to reproduce. Many hours were spent to figure out what combination caused it: It happens only on Windows XP (not on Vista, Server 2003, 2008, Win 7); It does not happens on all Windows XP, because it is Race condition; I was unable to reproduce it …

All ISO files from Microsoft shows CRC32 FFFFFFFF (0xffffffff)

Playing with Freeware Hash & CRC I noticed that CRC32 for all ISO files that comes from Microsoft (MSDN and Technet) are the same – FFFF FFFF. At first I thought that there is some bug in CRC implementation. But after taking look at the file ending in hex, I found, that all files have …