Fix VARIANT conversion errors in install_windbg.cpp

Co-authored-by: xusheng6 <94503187+xusheng6@users.noreply.github.com>

Author: Copilot

core/adapters/dbgeng/install_windbg.cpp

@@ -118,18 +118,24 @@ namespace BinaryNinjaDebugger
 					return false;
 				}
 
-				// Convert paths to BSTRs
+				// Convert paths to BSTRs and then to VARIANTs
 				_bstr_t bstrZipPath(zipPath.c_str());
 				_bstr_t bstrExtractPath(extractPath.c_str());
 
+				VARIANT vZipPath, vExtractPath;
+				vZipPath.vt = VT_BSTR;
+				vZipPath.bstrVal = bstrZipPath.Detach();
+				vExtractPath.vt = VT_BSTR;
+				vExtractPath.bstrVal = bstrExtractPath.Detach();
+
 				// Get folder objects
 				Folder* pZipFolder = nullptr;
 				Folder* pDestFolder = nullptr;
 
-				hr = pShellApp->NameSpace(bstrZipPath, &pZipFolder);
+				hr = pShellApp->NameSpace(vZipPath, &pZipFolder);
 				if (SUCCEEDED(hr) && pZipFolder)
 				{
-					hr = pShellApp->NameSpace(bstrExtractPath, &pDestFolder);
+					hr = pShellApp->NameSpace(vExtractPath, &pDestFolder);
 					if (SUCCEEDED(hr) && pDestFolder)
 					{
 						// Get items from zip folder
@@ -174,6 +180,10 @@ namespace BinaryNinjaDebugger
 					LogError("Failed to open zip file as folder: 0x%08x", hr);
 				}
 
+				// Clean up VARIANTs
+				VariantClear(&vZipPath);
+				VariantClear(&vExtractPath);
+
 				pShellApp->Release();
 			}
 			catch (...)
@@ -224,18 +234,24 @@ namespace BinaryNinjaDebugger
 					return "";
 				}
 
-				// Convert paths to BSTRs
+				// Convert paths to BSTRs and then to VARIANTs
 				_bstr_t bstrZipPath(zipPath.c_str());
 				_bstr_t bstrExtractPath(extractDir.c_str());
 
+				VARIANT vZipPath, vExtractPath;
+				vZipPath.vt = VT_BSTR;
+				vZipPath.bstrVal = bstrZipPath.Detach();
+				vExtractPath.vt = VT_BSTR;
+				vExtractPath.bstrVal = bstrExtractPath.Detach();
+
 				// Get folder objects
 				Folder* pZipFolder = nullptr;
 				Folder* pDestFolder = nullptr;
 
-				hr = pShellApp->NameSpace(bstrZipPath, &pZipFolder);
+				hr = pShellApp->NameSpace(vZipPath, &pZipFolder);
 				if (SUCCEEDED(hr) && pZipFolder)
 				{
-					hr = pShellApp->NameSpace(bstrExtractPath, &pDestFolder);
+					hr = pShellApp->NameSpace(vExtractPath, &pDestFolder);
 					if (SUCCEEDED(hr) && pDestFolder)
 					{
 						// Get items from zip folder
@@ -316,6 +332,10 @@ namespace BinaryNinjaDebugger
 					LogError("Failed to open zip file as folder: 0x%08x", hr);
 				}
 
+				// Clean up VARIANTs
+				VariantClear(&vZipPath);
+				VariantClear(&vExtractPath);
+
 				pShellApp->Release();
 			}
 			catch (...)