shdocvw: add a stub for InstallReg_RunDLL

[Austin English]

Fixes http://bugs.winehq.org/show_bug.cgi?id=28490

-- 
-Austin
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diff --git a/dlls/shdocvw/shdocvw.spec b/dlls/shdocvw/shdocvw.spec
index 1cdeff4..06537bf 100644
--- a/dlls/shdocvw/shdocvw.spec
+++ b/dlls/shdocvw/shdocvw.spec
@@ -121,7 +121,7 @@
 @ stub IEAboutBox
 @ stub IEWriteErrorLog
 @ stdcall ImportPrivacySettings(wstr ptr ptr)
-@ stub InstallReg_RunDLL
+@ stdcall InstallReg_RunDLL(ptr ptr)
 @ stdcall OpenURL(long long str long) ieframe.OpenURL
 @ stub SHGetIDispatchForFolder
 @ stdcall SetQueryNetSessionCount(long)
diff --git a/dlls/shdocvw/shdocvw_main.c b/dlls/shdocvw/shdocvw_main.c
index 88fe5ed..e1c4335 100644
--- a/dlls/shdocvw/shdocvw_main.c
+++ b/dlls/shdocvw/shdocvw_main.c
@@ -524,3 +524,15 @@ BOOL WINAPI ImportPrivacySettings(LPCWSTR filename, BOOL *pGlobalPrefs, BOOL * p
 
     return TRUE;
 }
+
+/******************************************************************
+ * InstallReg_RunDLL (SHDOCVW.@)
+ *
+ * Called by native IE3 on first run.
+ *
+ */
+DWORD WINAPI InstallReg_RunDLL(PVOID par1, PVOID par2)
+{
+    FIXME("(%p, %p): stub!\n");
+    return 0;
+}