Paging Records

I am trying to develop a page where users can click on alphabets to look for a company name that starts with the selected letter.

Searching through the forums i came across the method of using DoCmd.

alpha = Request.QueryString("alp")
if alpha <> "" then
DoCmd.ApplyFilter "", "[com_name] Like ""[" & alpha & "]*"""
end if

The 'alpha' variable here holds the alphabet selected by user from another page. However, I'm getting an error message saying

Microsoft VBScript runtime (0x800A01F4)
Variable is undefined: 'DoCmd'

Initially i tried the usual filtering

if alpha <> "" then
rs.Filter = "com_name LIKE " & alpha
end if

The pages are suppose to display records in 10s. But instead of showing only the records of company starting "A" (example) it shows everything.

then, i was told in the forum that DoCmd is not used with ASP. Is there any other way?