diff --git a/dlls/dbgeng/dbgeng.c b/dlls/dbgeng/dbgeng.c
index d213653bbd3..cab118f5c42 100644
--- a/dlls/dbgeng/dbgeng.c
+++ b/dlls/dbgeng/dbgeng.c
@@ -33,7 +33,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(dbgeng);
 * Initializing Debug Engine
 *
 * PARAMS
-*   pVersion  [O] Recieving the version of extension
+*   pVersion  [O] Receiving the version of extension
 *   pFlags    [O] Reserved
 *
 * RETURNS
diff --git a/dlls/opencl/opencl.c b/dlls/opencl/opencl.c
index 5f18379e1a9..7552e797a91 100644
--- a/dlls/opencl/opencl.c
+++ b/dlls/opencl/opencl.c
@@ -784,7 +784,7 @@ cl_int WINAPI wine_clEnqueueNativeKernel(cl_command_queue command_queue,
     /* FIXME: There appears to be no obvious method for translating the ABI for user_func.
      * There is no opaque user_data structure passed, that could encapsulate the return address.
      * The OpenCL specification seems to indicate that args has an implementation specific
-     * structure that can not be used to stash away a return address for the WINAPI user_func.
+     * structure that cannot be used to stash away a return address for the WINAPI user_func.
      */
 #if 0
     ret = clEnqueueNativeKernel(command_queue, user_func, args, cb_args, num_mem_objects, mem_list, args_mem_loc,
diff --git a/dlls/quartz/dsoundrender.c b/dlls/quartz/dsoundrender.c
index 38572c2646c..975eee17ddd 100644
--- a/dlls/quartz/dsoundrender.c
+++ b/dlls/quartz/dsoundrender.c
@@ -137,7 +137,7 @@ static void DSoundRender_UpdatePositions(DSoundRenderImpl *This, DWORD *seqwrite
     if (!writepos_set || old_writepos < writepos) {
         if (writepos_set) {
             This->writepos = This->buf_size;
-            FIXME("Underrun of data occured!\n");
+            FIXME("Underrun of data occurred!\n");
         }
         *seqwritepos = writepos;
     } else
diff --git a/dlls/strmbase/qualitycontrol.c b/dlls/strmbase/qualitycontrol.c
index 5676a95c6fe..8bcaaa998f5 100644
--- a/dlls/strmbase/qualitycontrol.c
+++ b/dlls/strmbase/qualitycontrol.c
@@ -1,7 +1,7 @@
 /*
  * Quality Control Interfaces
  *
- * Copyright 2010 Maarten Lankhorst for Codeweavers
+ * Copyright 2010 Maarten Lankhorst for CodeWeavers
  *
  * rendering qos functions based on, the original can be found at
  * gstreamer/libs/gst/base/gstbasesink.c which has copyright notice:
diff --git a/dlls/wer/main.c b/dlls/wer/main.c
index 585ac91a30b..e53f4980cd3 100644
--- a/dlls/wer/main.c
+++ b/dlls/wer/main.c
@@ -276,7 +276,7 @@ HRESULT WINAPI WerReportCreate(PCWSTR eventtype, WER_REPORT_TYPE reporttype, PWE
  *
  * PARAMS
  *  hreport [i] error reporting handle to add the parameter
- *  id      [i] parameter to set (WER_P0 upto WER_P9)
+ *  id      [i] parameter to set (WER_P0 up to WER_P9)
  *  name    [i] optional name of the parameter
  *  value   [i] value of the parameter
  *
diff --git a/dlls/wineqtdecoder/main.c b/dlls/wineqtdecoder/main.c
index e36101394be..d209bdb4607 100644
--- a/dlls/wineqtdecoder/main.c
+++ b/dlls/wineqtdecoder/main.c
@@ -1,5 +1,5 @@
 /*
- * Directshow filter for Quicktime Toolkit on mac OS/X
+ * DirectShow filter for QuickTime Toolkit on Mac OS X
  *
  * Copyright (C) 2010 Aric Stewart, CodeWeavers
  *