diff --git a/PowerEditor/src/WinControls/FileBrowser/fileBrowser.cpp b/PowerEditor/src/WinControls/FileBrowser/fileBrowser.cpp
index fe6108cdc..97d3b8f55 100644
--- a/PowerEditor/src/WinControls/FileBrowser/fileBrowser.cpp
+++ b/PowerEditor/src/WinControls/FileBrowser/fileBrowser.cpp
@@ -513,15 +513,15 @@ void FileBrowser::openSelectFile()
 	HTREEITEM selectedNode = _treeView.getSelection();
 	if (!selectedNode) return;
 
-	generic_string fullPath = getNodePath(selectedNode);
+	_selectedNodeFullPath = getNodePath(selectedNode);
 
 	// test the path - if it's a file, open it, otherwise just fold or unfold it
-	if (!::PathFileExists(fullPath.c_str()))
+	if (!::PathFileExists(_selectedNodeFullPath.c_str()))
 		return;
-	if (::PathIsDirectory(fullPath.c_str()))
+	if (::PathIsDirectory(_selectedNodeFullPath.c_str()))
 		return;
 
-	::SendMessage(_hParent, NPPM_DOOPEN, 0, reinterpret_cast<LPARAM>(fullPath.c_str()));
+	::PostMessage(_hParent, NPPM_DOOPEN, 0, reinterpret_cast<LPARAM>(_selectedNodeFullPath.c_str()));
 }
 
 
diff --git a/PowerEditor/src/WinControls/FileBrowser/fileBrowser.h b/PowerEditor/src/WinControls/FileBrowser/fileBrowser.h
index 1dc23b0ba..ebc21c6f8 100644
--- a/PowerEditor/src/WinControls/FileBrowser/fileBrowser.h
+++ b/PowerEditor/src/WinControls/FileBrowser/fileBrowser.h
@@ -176,6 +176,8 @@ protected:
 	HMENU _hFileMenu = NULL;
 	std::vector<FolderUpdater *> _folderUpdaters;
 
+	generic_string _selectedNodeFullPath; // this member is used only for PostMessage call
+
 	std::vector<SortingData4lParam*> sortingDataArray;
 
 	void initPopupMenus();
diff --git a/PowerEditor/src/WinControls/ProjectPanel/ProjectPanel.cpp b/PowerEditor/src/WinControls/ProjectPanel/ProjectPanel.cpp
index b4d9941da..ea7906b1b 100644
--- a/PowerEditor/src/WinControls/ProjectPanel/ProjectPanel.cpp
+++ b/PowerEditor/src/WinControls/ProjectPanel/ProjectPanel.cpp
@@ -579,7 +579,7 @@ void ProjectPanel::openSelectFile()
 		tvItem.mask = TVIF_IMAGE | TVIF_SELECTEDIMAGE;
 		if (::PathFileExists(fn->c_str()))
 		{
-			::SendMessage(_hParent, NPPM_DOOPEN, 0, reinterpret_cast<LPARAM>(fn->c_str()));
+			::PostMessage(_hParent, NPPM_DOOPEN, 0, reinterpret_cast<LPARAM>(fn->c_str()));
 			tvItem.iImage = INDEX_LEAF;
 			tvItem.iSelectedImage = INDEX_LEAF;
 		}