I have a script that checks to see if certain values exist in the QueryString. Last night this worked:<BR>If (Request.QueryString.Key("variable_name")) {<BR> Do stuff if that exists...<BR>}<BR>I installed NT service pack 5 last night (we were on 4) and now I&#039m getting an "Object doesn&#039t support this property or method" error. It appears as though the QueryString Object no longer knows how to use the Key method. Anyone know how I can get this to work again or how I can accomplish the same task in another way?<BR>Thanks alot,<BR>Matt