Description: ip checksum control, no need to use the controls on the user input to check the IP address, vs2005 source.
File list (Check if you may need any files):
IPAddrss
........\IPAddressControl.sln
........\IPAddressControlLib
........\...................\AssemblyInfo.cs
........\...................\bin
........\...................\...\Debug
........\...................\...\.....\IPAddressControlLib.dll
........\...................\...\.....\IPAddressControlLib.pdb
........\...................\copyright.txt
........\...................\DotControl.cs
........\...................\DotControl.resx
........\...................\FieldControl.cs
........\...................\IPAddressControl.cs
........\...................\IPAddressControlDesigner.cs
........\...................\IPAddressControlLib.csproj
........\...................\NativeMethods.cs
........\...................\obj
........\...................\...\Debug
........\...................\...\.....\IPAddressControlLib.csproj.GenerateResource.Cache
........\...................\...\.....\IPAddressControlLib.dll
........\...................\...\.....\IPAddressControlLib.DotControl.resources
........\...................\...\.....\IPAddressControlLib.pdb
........\...................\...\.....\IPAddressControlLib.Strings.resources
........\...................\...\.....\Refactor
........\...................\...\.....\........\IPAddressControlLib.dll
........\...................\...\.....\TempPE
........\...................\...\IPAddressControlLib.csproj.FileList.txt
........\...................\sgKey.snk
........\...................\Strings.resources
........\...................\Strings.txt
........\...................\UpgradeLog.XML
........\...................\Utility.cs
........\...................\_UpgradeReport_Files
........\...................\....................\UpgradeReport.css
........\...................\....................\UpgradeReport.xslt
........\...................\....................\UpgradeReport_Minus.gif
........\...................\....................\UpgradeReport_Plus.gif
........\IPTester
........\........\App.config
........\........\bin
........\........\...\Debug
........\........\...\.....\IPAddressControlLib.dll
........\........\...\.....\IPAddressControlLib.pdb
........\........\...\.....\IPTester.exe
........\........\...\.....\IPTester.exe.config
........\........\...\.....\IPTester.pdb
........\........\...\.....\IPTester.vshost.exe
........\........\...\.....\IPTester.vshost.exe.config
........\........\...\.....\WindowsApplication1.dll
........\........\...\.....\WindowsApplication1.pdb
........\........\Class1.cs
........\........\Form1.cs
........\........\Form1.Designer.cs
........\........\Form1.resx
........\........\IPTester.csproj
........\........\obj
........\........\...\Debug
........\........\...\.....\IPTester.csproj.GenerateResource.Cache
........\........\...\.....\IPTester.exe
........\........\...\.....\IPTester.Form1.resources
........\........\...\.....\IPTester.pdb
........\........\...\.....\IPTester.Properties.Resources.resources
........\........\...\.....\Refactor
........\........\...\.....\ResolveAssemblyReference.cache
........\........\...\.....\TempPE
........\........\...\IPTester.csproj.FileList.txt
........\........\Program.cs
........\........\Properties
........\........\..........\AssemblyInfo.cs
........\........\..........\Resources.Designer.cs
........\........\..........\Resources.resx
........\........\..........\Settings.Designer.cs
........\........\..........\Settings.settings
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