Debug and fix .Net DLL code to work on Windows 7

A DLL file loads fast on Windows XP (within 3-5 seconds) but is very slow to load on Windows 7.

1. The Folders are on a SBS Server 2003 for all cases

2. The app runs acceptably fast on a Win XP Client

3. The app runs acceptably fast on a Win 7 stand alone

4. The app runs unacceptably slow on a Win 7 Pro Client

5. There are around 5000 folders containing 25000 files

Full source code is attached.

The DLL file is called ExpTreeLib. It is called from an exe file. The problem is in the DLL only. Nothing needs to be done on the main exe.

Requirement: study and debug the source code to find out in what part of the source code the lag is happening, then find a solution so it is not slow when called on a Windows 7 machine.

For debugging I need the programmer to insert debug messages through out the source code so I can run it on the target machine connected to the server and report back so we can find a solution.

Suggestion:

'Set Start Folder for Document Folder

Dim dir As New [url removed, login to view](xxx)

'(xxx) to identify the client account and corresponding folder

If Not [url removed, login to view] Then [url removed, login to view](xxx)

Dim startDir As [url removed, login to view]

startDir = [url removed, login to view]("xxx)

[url removed, login to view] = startDir

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The Fix suggested to test:

Replace the line in the code that reads:

startDir = [url removed, login to view](xxx)

with:

startDir = New CShItem("xxx)

Microsoft Windows Desktop

Project ID: #2731036

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