>>>>>> 高分请教：关于在网页上通过OLE Automation启动SDI应用程序

[silver]

MyApp.exe是由MFC生成的带Automation(完全是AppWizard生成的默认代码）的SDI应用程序，希望在本地安装并注册MyApp.exe后，用户能够在网页上启动该程序，也就是点击网页上一个“启动MyApp”的按钮，MyApp.exe就被启动了。

在asp页面中加入下面的代码：
<Script Language=VBScript>
<!--
sub loadapp()
set obj=createobject("MyApp.Document")
End Sub
//-->
</Script>

打开该asp页后，MyApp.exe的界面闪了一下就消失了。尝试把IE的Internet选项中的安全设置调低，再打开该asp页，MyApp.exe被正常启动。

也就是说在网页里如果不把浏览器安全级别调低，就不能通过createobject正常启动MyApp.exe，这个问题该如何解决？具体怎么做？

只要问题解决，分数不是问题!

[bojinyu]

好像只能通过调低安全级别实现，反正在自己的机器上。
如果在别人的机器上实现，对那个人来说，那不是很不安全吗？
办法好像有一个，就是数字签名，我没做过，你试试。行了告诉我一声，
帮你up.

[silver]

网页就是要放在Internet上让其他用户访问的。

数字签名解决不了这个问题。

[silver]

该问题已经解决：

添加以下几个函数，并把下面这行代码加到 InitInstance 中
if (FAILED(DllRegisterServer())) AfxMessageBox("reg fail",NULL,NULL);


HRESULT CreateComponentCategory(CATID catid, WCHAR* catDescription)
{
ICatRegister* pcr = NULL ;
HRESULT hr = S_OK ;

hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
if (FAILED(hr))
return hr;

// Make sure the HKCR\Component Categories\{..catid...}
// key is registered.
CATEGORYINFO catinfo;
catinfo.catid = catid;
catinfo.lcid = 0x0409 ; // english

// Make sure the provided description is not too long.
// Only copy the first 127 characters if it is.
int len = wcslen(catDescription);
if (len>127)
len = 127;
wcsncpy(catinfo.szDescription, catDescription, len);
// Make sure the description is null terminated.
catinfo.szDescription[len] = '\0';

hr = pcr->RegisterCategories(1, &catinfo);
pcr->Release();

return hr;
}

HRESULT RegisterCLSIDInCategory(REFCLSID clsid, CATID catid)
{
// Register your component categories information.
ICatRegister* pcr = NULL ;
HRESULT hr = S_OK ;
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
if (SUCCEEDED(hr))
{
// Register this category as being "implemented" by the class.
CATID rgcatid[1] ;
rgcatid[0] = catid;
hr = pcr->RegisterClassImplCategories(clsid, 1, rgcatid);
}

if (pcr != NULL)
pcr->Release();

return hr;
}

STDAPI DllRegisterServer(void)
{
HRESULT hr; // return for safety functions

// Mark the control as safe for initializing.

hr = CreateComponentCategory(CATID_SafeForInitializing, L"Controls safely initializable from persistent data!");
if (FAILED(hr)) return hr;

hr = RegisterCLSIDInCategory(clsid, CATID_SafeForInitializing);
if (FAILED(hr)) return hr;

// Mark the control as safe for scripting.

hr = CreateComponentCategory(CATID_SafeForScripting, L"Controls safely scriptable!");
if (FAILED(hr)) return hr;

hr = RegisterCLSIDInCategory(clsid, CATID_SafeForScripting);
if (FAILED(hr)) return hr;

return NOERROR;
}