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 something like this at the end:
ExclCRC 0'm#AutoCRC _Ų¢v

Also, Google search revealed that many MS ISO files have check-sum of 0xFFFFFFFF. There is something to do with AutoCRC and ExclCRC… Go figure!

HTTP POST must be encoded and windows.location is encoded

When using JavaScript window.location in your code, be aware, that window.location is encoded using JavaScript escape function. It is not always obvious because characters, that get encoded / decoded using escape() / unescape() is rare in urls. Use the following syntax to get human readable url:
unescape(window.location)

URL: http://example.com/test url/
window.location: http://example.com/test%20url/
unescape(window.location): http://example.com/test url/

Also, HTTP POST must be percent encoded, using ‘+’ instead of ‘%20’:
w3
Percent encoding