I installed windows xp and windows server 2003 in "c:"(first install windows xp and then windows server 2003) .I think, when I installed windows xp,some files belonging go windows xp might have been rewritten which leads to some problem:I find that I can run asp project on windows server 2003(just because it's installed the last?) but fail on windows xp .Even the codes as follows will fail at line 2.

<%
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open "DRIVER={Microsoft Access Driver (*.mdb)}; DBQ="&Server.MapPath("data\mpl.mdb")
%>

It seem that the IIS cannot recognize *Server*.
There is another installation problem with VC6.Also ,it can be installed on windows server 2003,but failed on windows xp--It said that the odbc32.dll cannot be registered into the system.

My god ,I am really exhausted now.When two windows OS are installed in the same subarea as I do,they at least share four directories:"Document and Settings","Program Files","Inetpub",wmpub.
What problems will it take to me?
How can I fix the problems?