diff --git a/src/drivelst.cpp b/src/drivelst.cpp
index 44f239044..60b295ef2 100644
--- a/src/drivelst.cpp
+++ b/src/drivelst.cpp
@@ -2936,7 +2936,7 @@ BOOL CDrivesList::OnContextMenu(BOOL posByMouse, int itemIndex, int panel, const
 
     // commented out so that we can disconnect a network drive that is not accessible at the moment (longer waiting is tolerated)
     //  if (Drives->At(selectedIndex).DriveType == drvtRemote &&
-    //      Drives->At(selectedIndex).Accessible &&   // we will allow to disconnect unaccessible network drives, we verify the others
+    //      Drives->At(selectedIndex).Accessible &&   // we will allow to disconnect inaccessible network drives, we verify the others
     //      MainWindow->GetActivePanel()->CheckPath(TRUE, path) != ERROR_SUCCESS) return FALSE;
 
     //  MainWindow->ReleaseMenuNew();  // windows weren't built for more context menus
diff --git a/src/inflate.cpp b/src/inflate.cpp
index 1926aec4a..de2757128 100644
--- a/src/inflate.cpp
+++ b/src/inflate.cpp
@@ -33,7 +33,7 @@
    There are (currently) three kinds of inflate blocks: stored, fixed, and
    dynamic.  The compressor outputs a chunk of data at a time and decides
    which method to use on a chunk-by-chunk basis.  A chunk might typically
-   be 32K to 64K, uncompressed.  If the chunk is uncompressible, then the
+   be 32K to 64K, uncompressed.  If the chunk is incompressible, then the
    "stored" method is used.  In this case, the bytes are simply stored as
    is, eight bits per byte, with none of the above coding.  The bytes are
    preceded by a count, since there is no longer an EOB code.
diff --git a/src/plugins/automation/guiform.cpp b/src/plugins/automation/guiform.cpp
index 902f65bcc..ca23869e5 100644
--- a/src/plugins/automation/guiform.cpp
+++ b/src/plugins/automation/guiform.cpp
@@ -469,7 +469,7 @@ LRESULT CSalamanderGuiForm::WndProc(
             }
             else if (LOWORD(wParam) == IDOK)
             {
-                // This is command synthetized by the
+                // This command is synthesized by the
                 // dialog manager in reaction to the
                 // Enter key when there is no button.
             }
@@ -515,7 +515,7 @@ void CSalamanderGuiForm::InternalAddComponent(
     _ASSERTE(bounds.cy >= 0);
 
     // Calculate automatic position of the component.
-    // Put component bellow the previous by default and put
+    // Put the component below the previous one by default and put
     // some spacing between them.
     int yspacing = 0;
     if (pPrevComponent != NULL)
diff --git a/src/plugins/filecomp/dlg_com.h b/src/plugins/filecomp/dlg_com.h
index 4fbd882c0..b9958eda9 100644
--- a/src/plugins/filecomp/dlg_com.h
+++ b/src/plugins/filecomp/dlg_com.h
@@ -22,7 +22,7 @@ enum
     WN_CBINIT_FINISHED,      // the combo box was initialized successfully
     WN_CALCULATING_DETAILS,  // detailed differences are being computed
     WN_COMPARE_FINISHED,     // comparison finishes
-    WN_GET_CHANGESCOMBO,     // queries HWND of the Change combobox
+    WN_GET_CHANGESCOMBO,     // queries HWND of the Change combo box
     WN_SET_PROGRESS,         // sets progress MAKELPARAM(percent, changesCnt)
     WN_ADD_CHANGE            // registers a change in binary comparison
 };
diff --git a/src/plugins/ftp/ftp.rh2 b/src/plugins/ftp/ftp.rh2
index 02d9b5972..00a4741f5 100644
--- a/src/plugins/ftp/ftp.rh2
+++ b/src/plugins/ftp/ftp.rh2
@@ -62,7 +62,7 @@
 #define IDM_RESUMETESTFAILEDONRETRY 1117
 // menu on button Use Binary Mode in ASCII Transfer Mode is Set for File with Binary Content dialog (see Solve Error button in operation dialog)
 #define IDM_ASCIITRFORBINFILE  1118
-// menu on Add button in FTP Configuration > General (Proxy Server combobox)
+// menu on Add button in FTP Configuration > General (Proxy Server combo box)
 #define IDM_ADDPROXYSERVER     1119
 // menu in Proxy Server dialog, in Script editbox
 #define IDM_PRXSRVSCRIPTMENU   1120
diff --git a/src/plugins/ftp/help/hh/ftp/dlgboxes_chattrs.htm b/src/plugins/ftp/help/hh/ftp/dlgboxes_chattrs.htm
index 1ce3985b7..12227d3d7 100644
--- a/src/plugins/ftp/help/hh/ftp/dlgboxes_chattrs.htm
+++ b/src/plugins/ftp/help/hh/ftp/dlgboxes_chattrs.htm
@@ -38,7 +38,7 @@ <h4>Options</h4>
 
 <dt><i>Include subdirectories</i></dt>
 <dd>When checked, it will process also files and directories in selected subdirectories.
-Otherwise it will process only selected subdirectories (without content).
+Otherwise, it will process only selected subdirectories (without content).
 </dd>
 
 <dt><i>Change attributes of files</i></dt>
diff --git a/src/plugins/nethood/cache.h b/src/plugins/nethood/cache.h
index 795309630..0e2bb1c8c 100644
--- a/src/plugins/nethood/cache.h
+++ b/src/plugins/nethood/cache.h
@@ -1357,7 +1357,7 @@ class CNethoodCacheEnumerationThread : public CThread
     ///         the system defined error code.
     DWORD EnumNetworkShortcuts();
 
-    /// Enumerates volumes attached trough Terminal Service client.
+    /// Enumerates volumes attached through Terminal Service client.
     DWORD EnumTSClientVolumes();
 
     /// Reads shortcut target and inserts it as a child of the node
diff --git a/src/plugins/nethood/icons.h b/src/plugins/nethood/icons.h
index 89a5cba57..5cd2259e6 100644
--- a/src/plugins/nethood/icons.h
+++ b/src/plugins/nethood/icons.h
@@ -106,7 +106,7 @@ class CNethoodIcons
     // from the IconPro application and the 'Icons in Win32' article
     // (http://msdn.microsoft.com/en-us/library/ms997538.aspx).
     // These first two structs represent how the icon information is stored
-    // when it is bound into a EXE or DLL file. Structure members are WORD
+    // when it is bound into an EXE or DLL file. Structure members are WORD
     // aligned and the last member of the structure is the ID instead of
     // the imageoffset.
 #pragma pack(push)
diff --git a/src/plugins/peviewer/pefile.cpp b/src/plugins/peviewer/pefile.cpp
index 287cd7bba..73b9dd649 100644
--- a/src/plugins/peviewer/pefile.cpp
+++ b/src/plugins/peviewer/pefile.cpp
@@ -112,7 +112,7 @@ BOOL CPEFile::ImageDirectoryOffset(DWORD dwIMAGE_DIRECTORY,
 
     if (!b64Bit)
     {
-        /* must be 0 thru (NumberOfRvaAndSizes-1) */
+        /* must be 0 through (NumberOfRvaAndSizes-1) */
         if (dwIMAGE_DIRECTORY >= poh->NumberOfRvaAndSizes)
             return FALSE;
 
@@ -123,7 +123,7 @@ BOOL CPEFile::ImageDirectoryOffset(DWORD dwIMAGE_DIRECTORY,
     {
         PIMAGE_OPTIONAL_HEADER64 poh64 = (PIMAGE_OPTIONAL_HEADER64)poh;
 
-        /* must be 0 thru (NumberOfRvaAndSizes-1) */
+        /* must be 0 through (NumberOfRvaAndSizes-1) */
         if (dwIMAGE_DIRECTORY >= poh64->NumberOfRvaAndSizes)
             return FALSE;
 
diff --git a/src/plugins/regedt/finddlg.cpp b/src/plugins/regedt/finddlg.cpp
index b50f236e1..e953771e4 100644
--- a/src/plugins/regedt/finddlg.cpp
+++ b/src/plugins/regedt/finddlg.cpp
@@ -1017,7 +1017,7 @@ CComboboxEdit::GetSel(DWORD *start, DWORD *end)
 void
 CComboboxEdit::ReplaceText(const char *text)
 {
-  // we have to revive the selection because the dumb combobox forgot it
+  // we have to revive the selection because the dumb combo box forgot it
   SendMessage(HWindow, EM_SETSEL, SelStart, SelEnd);
   SendMessage(HWindow, EM_REPLACESEL, TRUE, (LPARAM)text);
 }
diff --git a/src/plugins/renamer/dialogs.cpp b/src/plugins/renamer/dialogs.cpp
index 6f39fc33f..f268e983b 100644
--- a/src/plugins/renamer/dialogs.cpp
+++ b/src/plugins/renamer/dialogs.cpp
@@ -459,7 +459,7 @@ void CComboboxEdit::SetSel(DWORD start, DWORD end)
 void CComboboxEdit::ReplaceText(const char* text)
 {
     CALL_STACK_MESSAGE_NONE
-    // we must refresh the selection because the dumb combobox forgot it
+    // we must refresh the selection because the dumb combo box forgot it
     SendMessage(HWindow, EM_SETSEL, SelStart, SelEnd);
     SendMessage(HWindow, EM_REPLACESEL, TRUE, (LPARAM)text);
 }
diff --git a/src/plugins/renamer/dialogs.h b/src/plugins/renamer/dialogs.h
index c1dec91d7..724bc1ca7 100644
--- a/src/plugins/renamer/dialogs.h
+++ b/src/plugins/renamer/dialogs.h
@@ -57,7 +57,7 @@ void TransferCombo(CTransferInfo& ti, int id, int* comboContent, int& value);
 //
 // CComboboxEdit
 //
-// Because the combobox is cleared, the classic method (CB_GETEDITSEL) cannot determine
+// Because the combo box is cleared, the classic method (CB_GETEDITSEL) cannot determine
 // what the selection was after focus is lost. This control solves it.
 //
 
diff --git a/src/plugins/shared/lukas/counter.h b/src/plugins/shared/lukas/counter.h
index 81236feeb..713291e26 100644
--- a/src/plugins/shared/lukas/counter.h
+++ b/src/plugins/shared/lukas/counter.h
@@ -6,7 +6,7 @@
 
 // ****************************************************************************
 //
-// CCounter -- hight precision counter for performance metering
+// CCounter -- high precision counter for performance metering
 
 class CCounter
 {
diff --git a/src/plugins/unarj/unarj.h b/src/plugins/unarj/unarj.h
index ba17be654..e35aba482 100644
--- a/src/plugins/unarj/unarj.h
+++ b/src/plugins/unarj/unarj.h
@@ -74,7 +74,7 @@ typedef unsigned long ulong;   /* 32 bits or more */
 /* Structure of archive main header (low order byte first):
 /*
 /*  2  header id (comment and local file) = 0x60, 0xEA
-/*  2  basic header size (from 'first_hdr_size' thru 'comment' below)
+/*  2  basic header size (from 'first_hdr_size' through 'comment' below)
 /*	     = first_hdr_size + strlen(filename) + 1 + strlen(comment) + 1
 /*	     = 0 if end of archive
 /*
@@ -114,7 +114,7 @@ typedef unsigned long ulong;   /* 32 bits or more */
 /* Structure of archive file header (low order byte first):
 /*
 /*  2  header id (comment and local file) = 0x60, 0xEA
-/*  2  basic header size (from 'first_hdr_size' thru 'comment' below)
+/*  2  basic header size (from 'first_hdr_size' through 'comment' below)
 /*	     = first_hdr_size + strlen(filename) + 1 + strlen(comment) + 1
 /*	     = 0 if end of archive
 /*
diff --git a/src/plugins/undelete/library/os.h b/src/plugins/undelete/library/os.h
index 09428e28d..f1164d291 100644
--- a/src/plugins/undelete/library/os.h
+++ b/src/plugins/undelete/library/os.h
@@ -508,10 +508,10 @@ typedef struct _DOSDPB
 
 //  GetDriveFormFactor returns the drive form factor.
 //
-//  It returns 350 if the drive is a 3.5" floppy drive.
-//  It returns 525 if the drive is a 5.25" floppy drive.
-//  It returns 800 if the drive is a 8" floppy drive.
-//  It returns   0 on error.
+//  Returns 350 if the drive is a 3.5" floppy drive.
+//  Returns 525 if the drive is a 5.25" floppy drive.
+//  Returns 800 if the drive is an 8" floppy drive.
+//  Returns   0 on error.
 //
 //  drive is C:\, D:\, \\?\Volume{GUID} (win2k and above only) etc.
 
diff --git a/src/plugins/zip/chicon.h b/src/plugins/zip/chicon.h
index 744a099a0..45c1ac36c 100644
--- a/src/plugins/zip/chicon.h
+++ b/src/plugins/zip/chicon.h
@@ -7,7 +7,7 @@
 // Structs
 
 // These first two structs represent how the icon information is stored
-// when it is bound into a EXE or DLL file. Structure members are WORD
+// when it is bound into an EXE or DLL file. Structure members are WORD
 // aligned and the last member of the structure is the ID instead of
 // the imageoffset.
 #pragma pack(push)
diff --git a/src/plugins/zip/explode.cpp b/src/plugins/zip/explode.cpp
index 6ef6a58e3..7f4f969e3 100644
--- a/src/plugins/zip/explode.cpp
+++ b/src/plugins/zip/explode.cpp
@@ -153,7 +153,7 @@ int Explode(CDecompressionObject* decompress);
    buffer of inflate is used, and it works just as well to always have
    a 32K circular buffer, so the index is anded with 0x7fff.  This is
    done to allow the window to also be used as the output buffer. */
-/* This must be supplied in an external module useable like "uch slide[8192];"
+/* This must be supplied in an external module usable like "uch slide[8192];"
    or "uch *slide;", where the latter would be malloc'ed.  In unzip, slide[]
    is actually a 32K area for use by inflate, which uses a 32K sliding window.
  */
diff --git a/src/plugins/zip/inflate.cpp b/src/plugins/zip/inflate.cpp
index 5d2e64098..1bb72eda7 100644
--- a/src/plugins/zip/inflate.cpp
+++ b/src/plugins/zip/inflate.cpp
@@ -41,7 +41,7 @@
    There are (currently) three kinds of inflate blocks: stored, fixed, and
    dynamic.  The compressor outputs a chunk of data at a time and decides
    which method to use on a chunk-by-chunk basis.  A chunk might typically
-   be 32K to 64K, uncompressed.  If the chunk is uncompressible, then the
+   be 32K to 64K, uncompressed.  If the chunk is incompressible, then the
    "stored" method is used.  In this case, the bytes are simply stored as
    is, eight bits per byte, with none of the above coding.  The bytes are
    preceded by a count, since there is no longer an EOB code.
diff --git a/src/plugins/zip/selfextr/inflate.cpp b/src/plugins/zip/selfextr/inflate.cpp
index 7857d8187..5be2e88ca 100644
--- a/src/plugins/zip/selfextr/inflate.cpp
+++ b/src/plugins/zip/selfextr/inflate.cpp
@@ -50,7 +50,7 @@ unsigned char* InEnd;
    There are (currently) three kinds of inflate blocks: stored, fixed, and
    dynamic.  The compressor outputs a chunk of data at a time and decides
    which method to use on a chunk-by-chunk basis.  A chunk might typically
-   be 32K to 64K, uncompressed.  If the chunk is uncompressible, then the
+   be 32K to 64K, uncompressed.  If the chunk is incompressible, then the
    "stored" method is used.  In this case, the bytes are simply stored as
    is, eight bits per byte, with none of the above coding.  The bytes are
    preceded by a count, since there is no longer an EOB code.
diff --git a/src/plugins/zip/zip2sfx/inflate.cpp b/src/plugins/zip/zip2sfx/inflate.cpp
index 152e1844a..a29caffb5 100644
--- a/src/plugins/zip/zip2sfx/inflate.cpp
+++ b/src/plugins/zip/zip2sfx/inflate.cpp
@@ -55,7 +55,7 @@ unsigned char* InEnd;
    There are (currently) three kinds of inflate blocks: stored, fixed, and
    dynamic.  The compressor outputs a chunk of data at a time and decides
    which method to use on a chunk-by-chunk basis.  A chunk might typically
-   be 32K to 64K, uncompressed.  If the chunk is uncompressible, then the
+   be 32K to 64K, uncompressed.  If the chunk is incompressible, then the
    "stored" method is used.  In this case, the bytes are simply stored as
    is, eight bits per byte, with none of the above coding.  The bytes are
    preceded by a count, since there is no longer an EOB code.
diff --git a/src/salinflt.cpp b/src/salinflt.cpp
index c488dd3b1..74c1b76d6 100644
--- a/src/salinflt.cpp
+++ b/src/salinflt.cpp
@@ -33,7 +33,7 @@
    There are (currently) three kinds of inflate blocks: stored, fixed, and
    dynamic.  The compressor outputs a chunk of data at a time and decides
    which method to use on a chunk-by-chunk basis.  A chunk might typically
-   be 32K to 64K, uncompressed.  If the chunk is uncompressible, then the
+   be 32K to 64K, uncompressed.  If the chunk is incompressible, then the
    "stored" method is used.  In this case, the bytes are simply stored as
    is, eight bits per byte, with none of the above coding.  The bytes are
    preceded by a count, since there is no longer an EOB code.
diff --git a/src/shellext/shellext.h b/src/shellext/shellext.h
index 2f8731fc5..3c8047055 100644
--- a/src/shellext/shellext.h
+++ b/src/shellext/shellext.h
@@ -302,7 +302,7 @@ void SE_Destructor(ShellExt* se);
 #define _ILNext(pidl)           _ILSkip(pidl, (pidl)->mkid.cb) 
 
 //#ifdef _DEBUG 
-// Dugging aids for making sure we dont use free pidls 
+// Debugging aids for making sure we don't use freed PIDLs
 //#define VALIDATE_PIDL(pidl) Assert((pidl)->mkid.cb != 0xC5C5) 
 //#else 
 #define VALIDATE_PIDL(pidl) 
diff --git a/src/translator/datarh.h b/src/translator/datarh.h
index ac92dc9a6..c08bda3f4 100644
--- a/src/translator/datarh.h
+++ b/src/translator/datarh.h
@@ -77,7 +77,7 @@ class CDataRH
 protected:
     void CleanIncompleteItems();
 
-    // analyse the line and add it to the array if it is a define
+    // analyse the line and add it to the array if it is a #define
     BOOL ProcessLine(const char* line, const char* lineEnd, int row);
 
     // convert 'param' to a numeric ID; when the value is still unknown because