The Combine method returns the value of the AppDomainAppVirtualPath property if the relative path is exactly a tilde (~).
The Combine method uses the AppDomainAppVirtualPath property value rather than the base path, if the relative path starts with a tilde and a slash mark (~/); otherwise, the Combine method uses the base path.
Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.