diff --git a/programs/media/ac97snd/ac97snd/ac97snd.vcproj b/programs/media/ac97snd/ac97snd/ac97snd.vcproj
index 533b82e76c..c3f6d72d15 100644
--- a/programs/media/ac97snd/ac97snd/ac97snd.vcproj
+++ b/programs/media/ac97snd/ac97snd/ac97snd.vcproj
@@ -227,16 +227,24 @@
 					>
 					<Tool
 						Name="VCCLCompilerTool"
-						Optimization="2"
+						Optimization="3"
 						InlineFunctionExpansion="0"
 						EnableIntrinsicFunctions="true"
-						FavorSizeOrSpeed="1"
+						FavorSizeOrSpeed="0"
 					/>
 				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\crt.c"
 				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AssemblerOutput="1"
+					/>
+				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\k_lib.asm"
diff --git a/programs/media/ac97snd/ac97snd/ac97wav.c b/programs/media/ac97snd/ac97snd/ac97wav.c
index 62efe012b7..57dd6b3254 100644
--- a/programs/media/ac97snd/ac97snd/ac97wav.c
+++ b/programs/media/ac97snd/ac97snd/ac97wav.c
@@ -429,7 +429,7 @@ void _stdcall thread_proc(void *param)
    int pos;
    int key;
    DWORD offset;
-   
+
   _asm
   {
     mov eax, 66
@@ -550,7 +550,8 @@ void _stdcall thread_proc(void *param)
 void delay (int val)
 {
   _asm
- {   mov   eax,5
+ {    
+      mov   eax,5
       mov   ebx, [val]
       int   0x40
   };  
@@ -559,7 +560,8 @@ void delay (int val)
 int wait_for_event(int time)
 { int retval;
   _asm
- {  mov  eax,23
+ {   
+     mov  eax,23
      mov  ebx,[time]
      int  0x40
      mov [retval], eax
@@ -570,7 +572,8 @@ int wait_for_event(int time)
 int wait_for_event_infinite()
 { int retval;
   _asm
-  {  mov  eax,10
+  {   
+      mov  eax,10
       int  0x40
       mov [retval], eax 
   };
@@ -579,7 +582,8 @@ int wait_for_event_infinite()
 
 void BeginDraw()
 {_asm
- { mov   eax,12
+ {  
+    mov   eax,12
     mov   ebx, 1
     int   0x40
   };  
@@ -587,7 +591,8 @@ void BeginDraw()
 
 void EndDraw()
 { _asm
- { mov   eax,12
+ {  
+    mov   eax,12
     mov   ebx, 2
     int   0x40
   };  
diff --git a/programs/media/ac97snd/ac97snd/k_lib.asm b/programs/media/ac97snd/ac97snd/k_lib.asm
index 78ea647c42..3f048da198 100644
--- a/programs/media/ac97snd/ac97snd/k_lib.asm
+++ b/programs/media/ac97snd/ac97snd/k_lib.asm
@@ -33,7 +33,7 @@ public _debug_out_hex@4
 public _create_thread@12
 
 
-;public _memset
+public _memset
 
 struc FILEIO
 {   .cmd            dd ?
@@ -81,10 +81,12 @@ _GetScreenSize@8:
 
 align 4
 _create_thread@12:
-.thr_proc    equ esp+4
-.param       equ esp+8
-.stack_size  equ esp+12
+.thr_proc    equ esp+8
+.param       equ esp+12
+.stack_size  equ esp+16
 
+           push ebx
+           
            mov eax, 68
            mov ebx, 12
            mov ecx, [.stack_size]
@@ -104,9 +106,11 @@ _create_thread@12:
            mov ebx, 1
            mov ecx, [.thr_proc]
            int 0x40
+           pop ebx
            ret 12
 .fail:
            not eax
+           pop ebx
            ret 12
 align 4
 .exit_point:
@@ -418,13 +422,13 @@ _draw_bar@20:
 ;arg5 - color
   push  ebx ecx
   mov   eax,13
-  mov   ebx,[esp+8]
+  mov   ebx,[esp+12]
   shl   ebx,16
-  mov   bx,[esp+16]
-  mov   ecx,[esp+12]
+  mov   bx,[esp+20]
+  mov   ecx,[esp+16]
   shl   ecx,16
-  mov   cx,[esp+20]
-  mov   edx,[esp+24]
+  mov   cx,[esp+24]
+  mov   edx,[esp+28]
   int   0x40
   pop   ecx ebx
   ret   20
@@ -437,12 +441,12 @@ _write_text@20:
 ;arg5 - len
   push  ebx ecx esi
   mov   eax,4
-  mov   ebx,[esp+12]
+  mov   ebx,[esp+16]
   shl   ebx,16
-  mov   bx,[esp+16]
-  mov   ecx,[esp+20]
-  mov   edx,[esp+24]
-  mov   esi,[esp+28]
+  mov   bx,[esp+20]
+  mov   ecx,[esp+24]
+  mov   edx,[esp+28]
+  mov   esi,[esp+32]
   int   0x40
   pop   esi ecx ebx
   ret   20
diff --git a/programs/media/ac97snd/mpg/readers.c b/programs/media/ac97snd/mpg/readers.c
index 9133f59e43..711a6d939b 100644
--- a/programs/media/ac97snd/mpg/readers.c
+++ b/programs/media/ac97snd/mpg/readers.c
@@ -97,6 +97,7 @@ static int fill_reader(struct reader *rd)
      mem_cpy(rd->buffer,rd->stream,rd->strremain);
 
    rd->stream = rd->buffer;
+   bytes= 0;   
    retval=read_file (rd->hFile,rd->buffer+rd->strremain,rd->filepos,
                             0x10000-rd->strremain,&bytes);
    if( (retval==0)||(retval==6))
@@ -106,7 +107,7 @@ static int fill_reader(struct reader *rd)
      rd->strpos = 0;  
      return bytes;
    };
-   return 0;  
+   return bytes;  
 };
 
 int __stdcall set_reader(struct reader *rd, unsigned int filepos)