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03.31.2008 at 12:45PM PDT, ID: 23283724
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System.DirectoryServices.DirectorySearcher - search.FindOne causes app to crash on Vista

Asked by L00M in Microsoft Visual Basic.Net, .NET, Windows Vista

When running my app on XP, it's working great. However, when I attempt to run it on Vista (Business Edition), it simply crashes showing the following error:

"Appname has stopped working"

And that's it. Nothing more. I'm back to the prehistoric method of debugging by including MsgBoxs all over the code to see what is failing, and I've traced it to this line:

Dim result As SearchResult = search.FindOne()

AND, that code exists within a try/catch block. Vista is logged on to the network, and the object 'search' has been properly defined. Any ideas would be greatly appreciated.
TIA,
L00MStart Free Trial 
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Try
                MsgBox("xLoginName = " & xLoginName)
                xUserName = ExtractUserName(xLoginName)
                MsgBox("xUserName=" & xUserName)
                xDomainName = ExtractDomainName(xLoginName)
                MsgBox("xDomainName=" & xDomainName)
                Dim entryRoot As New DirectoryEntry("LDAP://" & xDomainName)
                MsgBox("1.4")
                Dim search As New DirectorySearcher(entryRoot)
                MsgBox("1.5")
                search.Filter = [String].Format("(SAMAccountName={0})", xUserName)
                MsgBox("1.6")
                search.PropertiesToLoad.Add("cn")
                MsgBox("1.7")
                search.PropertiesToLoad.Add("sn")
                MsgBox("1.8")
                search.PropertiesToLoad.Add("DisplayName")
                MsgBox("1.9")
                search.PropertiesToLoad.Add("dn")
                MsgBox("1.10")
                search.PropertiesToLoad.Add("sAMAccountName")
                MsgBox("1.11")
                search.PropertiesToLoad.Add("givenname")
                MsgBox("1.12")
                search.PropertiesToLoad.Add("ou")
                MsgBox("1.13")
 
                Try
                    Dim result As SearchResult = search.FindOne()
                    MsgBox("1.14")
 
'All MsgBoxs work as expected, except 1.14. I never see it. :(
[+][-]03.31.2008 at 08:17PM PDT, ID: 21250984

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About this solution

Zones: Microsoft Visual Basic.Net, .NET, Windows Vista
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Solution Provided By: Computer101
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