xp pro SP1 cheers Dom!
Yeah 41 by this list (probably more all the codes at the end are the disc IDs and afaik they all have to have matching 25 char. CoA codes)
XP Home and Professional Combo = WXPHFPP_EN
XP Home Retail = WXHFPP_EN
XP Home Retail with SP1 = XRMHFPP_EN
XP Home Retail with SP1a = X1AHFPP_EN
XP Home Retail with SP2 = VRMHFPP_EN
XP Home Upgrade = WXHCCP_EN
XP Home Upgrade with SP1 = XRMHCCP_EN
XP Home Upgrade with SP1a = X1AHCCP_EN
XP Home Upgrade with SP2 = VRMHCCP_EN
XP Home OEM = WXHOEM_EN
XP Home OEM with SP1 = XRMHOEM_EN
XP Home OEM with SP1a = X1AHOEM_EN
XP Home OEM with SP2 = VRMHOEM_EN
XP Home Volume = WXHVOL_EN
XP Home Volume with SP1 = XRMHVOL_EN
XP Home Volume with SP1a = X1AHVOL_EN
XP Home Volume with SP2 = VRMHVOL_EN
XP Professional Retail = WXPFPP_EN
XP Professional Retail with SP1 = XRMPFPP_EN
XP Professional Retail with SP1a = X1APFPP_EN
XP Professional Retail with SP2 = VRMPFPP_EN
XP Professional Upgrade = WXPCCP_EN
XP Professional Upgrade with SP1 = XRMPCCP_EN
XP Professional Upgrade with SP1a = X1APCCP_EN
XP Professional Upgrade with SP2 = VRMPCCP_EN
XP Professional OEM = WXPOEM_EN
XP Professional OEM with SP1 = XRMPOEM_EN
XP Professional OEM with SP1a = X1APOEM_EN
XP Professional OEM with SP2 = VRMPOEM_EN
XP Professional Volume = WXPVOL_EN
XP Professional Volume with SP1 = XRMPVOL_EN
XP Professional Volume with SP1a = X1APVOL_EN
XP Professional Volume with SP2 = VRMPVOL_EN
XP Professional Tablet PC with SP1 Disc1 = XRMPFPP_EN
XP Professional Tablet PC with SP1a Disc1 = X1APFPP_EN
XP Professional Tablet PC with SP2 Disc1 = VRMPFPP_EN
XP Professional MSDN = WXPFPP_EN
XP Professional MSDN with SP1 = XRMPFPP_EN
XP Professional MSDN with SP1a = X1APFPP_EN
XP Professional MSDN with SP2 = VRMPFPP_EN
XP Professional Evaluation = WXPEVL_EN
xp home/pro OEM/retail/VLC SP1/1a/2/3 there was also student and media editions probably others each with 32 and 64 bit variants all different distribution runs with corresponding CoAs Thats before You even start with different special builds like from dell etc... none of them cross compatible with others ie i Will have to find xp pro sp1 install disk to correspond with the CoA...
I can pretty safely say Its not gonna be a VLC so that leaves the question OEM or Retail... Im guessin it Will be OEM due to the laminated sticker but funk knows now i think Ive confused myself and i Cant see the forest for the trees