id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1624	_crypt_DecryptData not working in Windows 2000	brainwilli@…		"Please try the example from the AutoIt Help:

{{{
#include <Crypt.au3>
; This example shows how to decrypt a string
Local Const $bEncrypted = Binary(""0x040A0D2594CE1FFC8E4CE5BC14E8724B6B5900225EA8E45CF328"" & _
        ""9D0D6A48E490E53FB66F39FF5CA967C5F6CD04D399AF09E18E7A91EEA32F7BBBB714DEC6865128CE3A"" & _
        ""4F1BB826554B69B7AC96E8AAA639656F0323E34745167F4B72FF4984A1C4B81E1F66DDD9743B9C664406D76B52"")
MsgBox(0, ""Decrypted data"", BinaryToString(_Crypt_DecryptData($bEncrypted, ""once"", $CALG_RC2)))
}}}

Even Win2000 is very old, you did not stopped the support for this OS, as i can read on the homepage. 
The script is running fine under XP,Vista and Win7.
"	Bug	closed		AutoIt	3.3.6.1	None	No Bug	_crypt_DecryptData Windows 2000