i have this code in winform.vb:

Dim mySearcher As New DirectorySearcher()
Dim mySearchResult As SearchResult
mySearcher.Filter = ("(anr=username)")
mySearchResult = mySearcher.FindOne

Dim myEntry As New DirectoryEntry(mySearchResult.Path)

myEntry.Invoke("setpassword", "anypassword")
myEntry.CommitChanges()

so this work fine, but, i write the same code in webform.aspx.vb and:

i get an error: " the domain don't exist "

please help