Microsoft Windows 95 A
http://www.iespana.es/filesdos2/boot/WIN95A.EXE

Microsoft Windows 95 B
http://www.iespana.es/filesdos2/boot/WIN95B.EXE

Microsoft Windows 98
http://www.iespana.es/filesdos2/boot/WIN98.EXE

Microsoft Windows 98 Segunda Edición
http://www.iespana.es/filesdos2/boot/WIN98SE.EXE

Microsoft Windows ME
http://www.iespana.es/filesdos2/boot/WINME.EXE

Microsoft Windows 2000 Professional
ftp://ftp.fluidlight.com/pub/nospin_files/win2k_pro.zip

Microsoft Windows XP Home Edition
http://download.microsoft.com/download/WinXPHome/Install/310994/WIN98MeXP/ES/WinXP_ES_HOM_BF.exe

Microsoft Windows XP Professional
http://download.microsoft.com/download/whistler/Install/310994/WIN98MeXP/ES/WinXP_ES_PRO_BF.exe

Microsoft Windows XP Home Edition SP1
http://download.microsoft.com/download/WinXPHome/Install/SP1/W98NT42KMeXP/ES/winxpsp1_es_hom_bf.exe

Microsoft Windows XP Professional SP1
http://download.microsoft.com/download/4/c/9/4c9123a6-676f-4884-8185-223de365fe97/WindowsXP-KB310994-SP2-Pro-BootDisk-ESN.exe

Microsoft Windows XP Home Edition SP2
http://download.microsoft.com/download/9/d/2/9d2e17a3-cbf0-4bcf-9ab7-02cecbaadab8/WindowsXP-KB310994-SP2-Home-BootDisk-ESN.exe

Microsoft Windows XP Professional SP2
http://download.microsoft.com/download/4/c/9/4c9123a6-676f-4884-8185-223de365fe97/WindowsXP-KB310994-SP2-Pro-BootDisk-ESN.exe

espero que le sirva a alguien