Microsoft has just finished compiled the official Windows 7 RC, which has the build version of 7100, and the DVD ISO image for the final copy of Windows 7 RC has leaked and emerged on BitTorrent network.
Windows 7 RC (Release Candidate) is said to have the build version of 7100.0.winmain_win7rc.090421-1700.
Download 32-bit (x86) Windows 7 RC Build 7100 ISO Disc Image
File name: 7100.0.090421-1700_x86fre_client_en-us_Retail_Ultimate-GRC1CULFRER_EN_DVD.iso
Size 2.35 GB