diff --git a/src/worksp/gracket/gracket.manifest b/src/worksp/gracket/gracket.manifest
index d75e6b00fa..426bc51aeb 100644
--- a/src/worksp/gracket/gracket.manifest
+++ b/src/worksp/gracket/gracket.manifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity version="5.0.99.7"
+  <assemblyIdentity version="5.1.0.1"
                     processorArchitecture="X86"
                     name="Org.PLT-Scheme.GRacket"
                     type="win32" />
diff --git a/src/worksp/gracket/gracket.rc b/src/worksp/gracket/gracket.rc
index 46976b91aa..197b22a768 100644
--- a/src/worksp/gracket/gracket.rc
+++ b/src/worksp/gracket/gracket.rc
@@ -17,8 +17,8 @@ APPLICATION             ICON    DISCARDABLE     "gracket.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 5,0,99,7
- PRODUCTVERSION 5,0,99,7
+ FILEVERSION 5,1,0,1
+ PRODUCTVERSION 5,1,0,1
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -36,11 +36,11 @@ BEGIN
             VALUE "CompanyName", "PLT Scheme Inc.\0"
             VALUE "FileDescription", "Racket GUI application\0"
             VALUE "InternalName", "GRacket\0"
-            VALUE "FileVersion", "5, 0, 99, 7\0"
+            VALUE "FileVersion", "5, 1, 0, 1\0"
             VALUE "LegalCopyright", "Copyright � 1995-2011\0"
             VALUE "OriginalFilename", "GRacket.exe\0"
             VALUE "ProductName", "Racket\0"
-            VALUE "ProductVersion", "5, 0, 99, 7\0"
+            VALUE "ProductVersion", "5, 1, 0, 1\0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/worksp/mzcom/mzcom.rc b/src/worksp/mzcom/mzcom.rc
index e8be126ef2..c368394df8 100644
--- a/src/worksp/mzcom/mzcom.rc
+++ b/src/worksp/mzcom/mzcom.rc
@@ -53,8 +53,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 5,0,99,7
- PRODUCTVERSION 5,0,99,7
+ FILEVERSION 5,1,0,1
+ PRODUCTVERSION 5,1,0,1
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -70,12 +70,12 @@ BEGIN
         BLOCK "040904b0"
         BEGIN
             VALUE "FileDescription", "MzCOM Module"
-            VALUE "FileVersion", "5, 0, 99, 7"
+            VALUE "FileVersion", "5, 1, 0, 1"
             VALUE "InternalName", "MzCOM"
             VALUE "LegalCopyright", "Copyright 2000-2011 PLT (Paul Steckler)"
             VALUE "OriginalFilename", "MzCOM.EXE"
             VALUE "ProductName", "MzCOM Module"
-            VALUE "ProductVersion", "5, 0, 99, 7"
+            VALUE "ProductVersion", "5, 1, 0, 1"
         END
     END
     BLOCK "VarFileInfo"
@@ -105,10 +105,10 @@ CAPTION "MzCOM"
 FONT 8, "MS Sans Serif", 0, 0, 0x0
 BEGIN
     DEFPUSHBUTTON   "OK",IDOK,76,69,50,14,BS_CENTER
-    CTEXT           "MzCOM v. 5.0",IDC_STATIC,71,8,61,8
+    CTEXT           "MzCOM v. 5.1",IDC_STATIC,71,8,61,8
     CTEXT           "Copyright (c) 2000-2011 PLT (Paul Steckler)",IDC_STATIC,
                     41,20,146,9
-    CTEXT           "Racket v. 5.0",IDC_STATIC,64,35,75,8
+    CTEXT           "Racket v. 5.1",IDC_STATIC,64,35,75,8
     CTEXT           "Copyright (c) 1995-2011 PLT Inc.",IDC_STATIC,
                     30,47,143,8
     ICON            MZICON,IDC_STATIC,11,16,20,20
diff --git a/src/worksp/mzcom/mzobj.rgs b/src/worksp/mzcom/mzobj.rgs
index 5050eba105..eefd3fbe5d 100644
--- a/src/worksp/mzcom/mzobj.rgs
+++ b/src/worksp/mzcom/mzobj.rgs
@@ -1,19 +1,19 @@
 HKCR
 {
-	MzCOM.MzObj.5.0.99.7 = s 'MzObj Class'
+	MzCOM.MzObj.5.1.0.1 = s 'MzObj Class'
 	{
 		CLSID = s '{A3B0AF9E-2AB0-11D4-B6D2-0060089002FE}'
 	}
 	MzCOM.MzObj = s 'MzObj Class'
 	{
 		CLSID = s '{A3B0AF9E-2AB0-11D4-B6D2-0060089002FE}'
-		CurVer = s 'MzCOM.MzObj.5.0.99.7'
+		CurVer = s 'MzCOM.MzObj.5.1.0.1'
 	}
 	NoRemove CLSID
 	{
 		ForceRemove {A3B0AF9E-2AB0-11D4-B6D2-0060089002FE} = s 'MzObj Class'
 		{
-			ProgID = s 'MzCOM.MzObj.5.0.99.7'
+			ProgID = s 'MzCOM.MzObj.5.1.0.1'
 			VersionIndependentProgID = s 'MzCOM.MzObj'
 			ForceRemove 'Programmable'
 			LocalServer32 = s '%MODULE%'
diff --git a/src/worksp/racket/racket.manifest b/src/worksp/racket/racket.manifest
index 0b5d08fee3..d187aecf2b 100644
--- a/src/worksp/racket/racket.manifest
+++ b/src/worksp/racket/racket.manifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity version="5.0.99.7"
+  <assemblyIdentity version="5.1.0.1"
                     processorArchitecture="X86"
                     name="Org.PLT-Scheme.Racket"
                     type="win32" />
diff --git a/src/worksp/racket/racket.rc b/src/worksp/racket/racket.rc
index 8909243ff5..631b59bc12 100644
--- a/src/worksp/racket/racket.rc
+++ b/src/worksp/racket/racket.rc
@@ -29,8 +29,8 @@ APPLICATION             ICON    DISCARDABLE     "racket.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 5,0,99,7
- PRODUCTVERSION 5,0,99,7
+ FILEVERSION 5,1,0,1
+ PRODUCTVERSION 5,1,0,1
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -48,11 +48,11 @@ BEGIN
             VALUE "CompanyName", "PLT Scheme Inc.\0"
             VALUE "FileDescription", "Racket application\0"
             VALUE "InternalName", "Racket\0"
-            VALUE "FileVersion", "5, 0, 99, 7\0"
+            VALUE "FileVersion", "5, 1, 0, 1\0"
             VALUE "LegalCopyright", "Copyright �� 1995-2011\0"
             VALUE "OriginalFilename", "racket.exe\0"
             VALUE "ProductName", "Racket\0"
-            VALUE "ProductVersion", "5, 0, 99, 7\0"
+            VALUE "ProductVersion", "5, 1, 0, 1\0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/worksp/starters/start.rc b/src/worksp/starters/start.rc
index 03a1e24625..e6039214db 100644
--- a/src/worksp/starters/start.rc
+++ b/src/worksp/starters/start.rc
@@ -22,8 +22,8 @@ APPLICATION             ICON    DISCARDABLE     "mzstart.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 5,0,99,7
- PRODUCTVERSION 5,0,99,7
+ FILEVERSION 5,1,0,1
+ PRODUCTVERSION 5,1,0,1
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -45,7 +45,7 @@ BEGIN
 #ifdef MZSTART
             VALUE "FileDescription", "Racket Launcher\0"
 #endif
-            VALUE "FileVersion", "5, 0, 99, 7\0"
+            VALUE "FileVersion", "5, 1, 0, 1\0"
 #ifdef MRSTART
             VALUE "InternalName", "mrstart\0"
 #endif
@@ -60,7 +60,7 @@ BEGIN
             VALUE "OriginalFilename", "MzStart.exe\0"
 #endif
             VALUE "ProductName", "Racket\0"
-            VALUE "ProductVersion", "5, 0, 99, 7\0"
+            VALUE "ProductVersion", "5, 1, 0, 1\0"
         END
     END
     BLOCK "VarFileInfo"