diff --git a/collects/mred/info.ss b/collects/mred/info.ss
index f5f815a090..971c26b073 100644
--- a/collects/mred/info.ss
+++ b/collects/mred/info.ss
@@ -2,5 +2,5 @@
 (module info (lib "infotab.ss" "setup")
   (define doc.txt "doc.txt")
   (define name "MrEd")
-  (define version '(300))
+  (define version '(349.100))
   (define post-install-collection "script-installer.ss"))
diff --git a/collects/mzscheme/info.ss b/collects/mzscheme/info.ss
index 5ec919c2d8..0805ac3476 100644
--- a/collects/mzscheme/info.ss
+++ b/collects/mzscheme/info.ss
@@ -1,4 +1,4 @@
 
 (module info (lib "infotab.ss" "setup")
   (define name "MzScheme")
-  (define version '(300)))
+  (define version '(349.100)))
diff --git a/src/worksp/mred/mred.rc b/src/worksp/mred/mred.rc
index 6da5c83eaa..3852704322 100644
--- a/src/worksp/mred/mred.rc
+++ b/src/worksp/mred/mred.rc
@@ -20,8 +20,8 @@ APPLICATION             ICON    DISCARDABLE     "mred.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 300,0,0,0
- PRODUCTVERSION 300,0,0,0
+ FILEVERSION 349,100,0,0
+ PRODUCTVERSION 349,100,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -38,12 +38,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "PLT Inc.\0"
             VALUE "FileDescription", "mred\0"
-            VALUE "FileVersion", "300, 0, 0, 0\0"
+            VALUE "FileVersion", "349, 100, 0, 0\0"
             VALUE "InternalName", "mred\0"
             VALUE "LegalCopyright", "Copyright � 1995-2006\0"
             VALUE "OriginalFilename", "MrEd.exe\0"
             VALUE "ProductName", "MrEd\0"
-            VALUE "ProductVersion", "300, 0, 0, 0\0"
+            VALUE "ProductVersion", "349, 100, 0, 0\0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/worksp/mzcom/mzcom.rc b/src/worksp/mzcom/mzcom.rc
index a3e6a5af94..12988b0e6f 100644
--- a/src/worksp/mzcom/mzcom.rc
+++ b/src/worksp/mzcom/mzcom.rc
@@ -53,8 +53,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 300,0,0,0
- PRODUCTVERSION 300,0,0,0
+ FILEVERSION 349,100,0,0
+ PRODUCTVERSION 349,100,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -70,12 +70,12 @@ BEGIN
         BLOCK "040904b0"
         BEGIN
             VALUE "FileDescription", "MzCOM Module"
-            VALUE "FileVersion", "300, 0, 0, 0"
+            VALUE "FileVersion", "349, 100, 0, 0"
             VALUE "InternalName", "MzCOM"
             VALUE "LegalCopyright", "Copyright 2000-2006 PLT (Paul Steckler)"
             VALUE "OriginalFilename", "MzCOM.EXE"
             VALUE "ProductName", "MzCOM Module"
-            VALUE "ProductVersion", "300, 0, 0, 0"
+            VALUE "ProductVersion", "349, 100, 0, 0"
         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. 300",IDC_STATIC,71,8,61,8
+    CTEXT           "MzCOM v. 349.100",IDC_STATIC,71,8,61,8
     CTEXT           "Copyright (c) 2000-2006 PLT (Paul Steckler)",IDC_STATIC,
                     41,20,146,9
-    CTEXT           "MzScheme v. 300",IDC_STATIC,64,35,75,8
+    CTEXT           "MzScheme v. 349.100",IDC_STATIC,64,35,75,8
     CTEXT           "Copyright (c) 1995-2006 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 22f9b66b52..6082dfba7f 100644
--- a/src/worksp/mzcom/mzobj.rgs
+++ b/src/worksp/mzcom/mzobj.rgs
@@ -1,19 +1,19 @@
 HKCR
 {
-	MzCOM.MzObj.300 = s 'MzObj Class'
+	MzCOM.MzObj.349 = 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.300'
+		CurVer = s 'MzCOM.MzObj.349'
 	}
 	NoRemove CLSID
 	{
 		ForceRemove {A3B0AF9E-2AB0-11D4-B6D2-0060089002FE} = s 'MzObj Class'
 		{
-			ProgID = s 'MzCOM.MzObj.300'
+			ProgID = s 'MzCOM.MzObj.349'
 			VersionIndependentProgID = s 'MzCOM.MzObj'
 			ForceRemove 'Programmable'
 			LocalServer32 = s '%MODULE%'
diff --git a/src/worksp/mzscheme/mzscheme.rc b/src/worksp/mzscheme/mzscheme.rc
index 0fc6db43e3..8bb660c6f9 100644
--- a/src/worksp/mzscheme/mzscheme.rc
+++ b/src/worksp/mzscheme/mzscheme.rc
@@ -29,8 +29,8 @@ APPLICATION             ICON    DISCARDABLE     "mzscheme.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 300,0,0,0
- PRODUCTVERSION 300,0,0,0
+ FILEVERSION 349,100,0,0
+ PRODUCTVERSION 349,100,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -47,12 +47,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "PLT Inc.\0"
             VALUE "FileDescription", "mzscheme\0"
-            VALUE "FileVersion", "300, 0, 0, 0\0"
+            VALUE "FileVersion", "349, 100, 0, 0\0"
             VALUE "InternalName", "mzscheme\0"
             VALUE "LegalCopyright", "Copyright �� 1995-2006\0"
             VALUE "OriginalFilename", "mzscheme.exe\0"
             VALUE "ProductName", "MzScheme\0"
-            VALUE "ProductVersion", "300, 0, 0, 0\0"
+            VALUE "ProductVersion", "349, 100, 0, 0\0"
         END
     END
     BLOCK "VarFileInfo"