does this mean that SDK 7 is not useful for VC 2005 anyway?
Don’t know. You can read it at specification of SDK.
Do I have to install the old SDK 6.1 ?
Installed 6A at C:\Program Files\Microsoft SDKs\Windows\v6.0A and NOT USED!!!!! AS IN SCRIPT!!!! *WALL* =)
Using SDK from C:\Development\Windows 7 SDK ...