Taken from:
http://support.microsoft.com/kb/322389
To install Windows XP Service Pack 3 (SP3), either Windows XP Service Pack
1a (SP1a) or Windows XP Service Pack 2 (SP2) must already be installed.
Note:
Difference between SP1 and SP1a, see:
http://support.microsoft.com/kb/813926/
So you don't need SP1a (not SP1 as you said). You can install WinXP SP2 then
SP3. Speaking of which, does SP3 setup CD include SP2? Take a look at your
SP3 CD.
"MasterDummy" <(E-Mail Removed)> wrote in message
news:4AEA7BDC-C729-4650-9DA0-(E-Mail Removed)...
>I have a windows XP with no SP1, 2 nor 3. I have dial-up with 4 hours
> connection time.
> I have SP3 cd, but it needs at least SP1 in windows.