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参考了以文章，感谢文章作者。
http://www.cnblogs.com/gnielee/archive/2010/04/08/1707169.html
http://www.java123.net/v/324099.html
开始按VC写的，发现有问题，后精简为C#版。
｝
｛导入的API｝
function WTSQueryUserToken(SessionId: DWORD; phToken: PHandle): Boolean; stdcall; external 'wtsapi32.dll';
function CreateEnvironmentBlock(lpEnvironment: PPVOID; hToken: THandle; bInherit: Boolean): Boolean; stdcall; external 'userenv.dll';
｛ 判断操作系统 ｝
function GetWindowsVersion: Double;
var
Info: TOSVersionInfo;
begin
FillChar(Info, sizeof(Info), 0);
Info.dwOSVersionInfoSize := sizeof(OSVERSIONINFO);
GetVersionExW(Info);
Result := StrToFloat(Info.dwMajorVersion.ToString()+'.'+Info.dwMinorVersion.ToString());
end;
｛ 主体代码｝
function RunAppTest: Boolean;
var
si: TStartupInfo;
pi: TProcessInformation;
hThisToken, hDuplicatedToken: THandle;
SessionID: DWORD;
TokenInfoClass: TTokenInformationClass;
lpEnvironment: LPVOID;
sa: TSecurityAttributes;
begin
ZeroMemory(@si, SizeOf(si));
ZeroMemory(@pi, Sizeof(pi));
si.cb := SizeOf(si);
si.lpDesktop := 'Winsta0\Default';
SessionID := WTSGetActiveConsoleSessionId();
b := WTSQueryUserToken(SessionID, @hThisToken);
Log.Add('WTSQueryUserToken ' + B2S(b));
b := DuplicateTokenEx(hThisToken, MAXIMUM_ALLOWED, @sa, SecurityIdentification, TokenPrimary, hDuplicatedToken);
Log.Add('DuplicateTokenEx ' + B2S(b));
b := CreateEnvironmentBlock(@lpEnvironment, hDuplicatedToken, False);
Log.Add('CreateEnvironmentBlock ' + B2S(b));
b := CreateProcessAsUserW( hDuplicatedToken,
'calc.exe',
nil,
@sa,
nil,
False,
NORMAL_PRIORITY_CLASS or CREATE_NEW_CONSOLE or CREATE_UNICODE_ENVIRONMENT,
lpEnvironment,
'c:\windows\system32',
si,
pi );
Log.Add('CreateProcessAsUserW ' + B2S(b));
{ CloseHandle 代码 略 }
end;
补充信息：
1 网上搜的系统版本号
{
4.0 win95 4.10 win98 4.90 win_me 3.51 win_Nt_3_5 5.0 win2000 5.1 win_xp 5.2 win2003 6.0 vista 6.1 win7 6.2 win8
}
2 服务线程中切换
if GetWindowsVersion<6.0 then
WinExec('c:\windows\system32\notepad.exe', SW_SHOWNORMAL)
else
RunAppTest;
3 Service 的 Interactive属性 置为 true （win2003下需要）
昨晚在网上没搜到现成的代码，只好花了点时间自己来转为D的代码，希望对需要的人有所帮助以节省时间。
