diff --git a/CLIENT_DATA/delsub32.ins b/CLIENT_DATA/delsub32.ins
index 16c8e7b..895f9a6 100644
--- a/CLIENT_DATA/delsub32.ins
+++ b/CLIENT_DATA/delsub32.ins
@@ -4,7 +4,7 @@
 ; credits: http://www.opsi.org/credits/
 
 
-Set $MsiIdConv$ = '{90120000-0020-0409-0000-0000000FF1CE}'
+Set $MsiIdConv$ = '{90120000-0020-0407-0000-0000000FF1CE}'
 Set $MsiId$ = '{90850407-6000-11D3-8CFE-0150048383C9}'
 Set $UninstallProgram$ = $InstallDir$ + "\uninstall.exe"
 
@@ -15,6 +15,11 @@ if FileExists($UninstallProgram$)
 	Winbatch_uninstall
 	sub_check_exitcode
 endif
+if not (GetRegistryStringValue32("[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\" + $MsiIdConv$ + "] DisplayName") = "")
+	comment "MSI id " + $MsiIdConv$ + " found in registry, starting msiexec to uninstall"
+	Winbatch_uninstall_msi_conv
+	sub_check_exitcode
+endif
 if not (GetRegistryStringValue32("[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\" + $MsiId$ + "] DisplayName") = "")
 	comment "MSI id " + $MsiId$ + " found in registry, starting msiexec to uninstall"
 	Winbatch_uninstall_msi
@@ -40,8 +45,10 @@ LinkFolder_uninstall
 ; "$UninstallProgram$" /silent /norestart
 
 
-[Winbatch_uninstall_msi]
+[Winbatch_uninstall_msi_conv]
 msiexec /x $MsiIdConv$ /qb! REBOOT=ReallySuppress
+
+[Winbatch_uninstall_msi]
 msiexec /x $MsiId$ /qb! REBOOT=ReallySuppress
 
 [Files_uninstall]
diff --git a/CLIENT_DATA/setup32.ins b/CLIENT_DATA/setup32.ins
index 148c4b1..1424100 100644
--- a/CLIENT_DATA/setup32.ins
+++ b/CLIENT_DATA/setup32.ins
@@ -7,6 +7,7 @@
 requiredWinstVersion >= "4.10.8.6"
 
 DefVar $MsiId$
+DefVar $MsiIdConv$
 DefVar $UninstallProgram$
 DefVar $LogDir$
 DefVar $ProductId$  
diff --git a/CLIENT_DATA/uninstall32.ins b/CLIENT_DATA/uninstall32.ins
index 947528d..1f76687 100644
--- a/CLIENT_DATA/uninstall32.ins
+++ b/CLIENT_DATA/uninstall32.ins
@@ -7,6 +7,7 @@
 requiredWinstVersion >= "4.10.8.6"
 
 DefVar $MsiId$
+DefVar $MsiIdConv$
 DefVar $UninstallProgram$
 DefVar $LogDir$
 DefVar $ExitCode$