msi: Delete the uninstall key when the product is removed.

dlls/msi/action.c

@@ -4039,6 +4039,7 @@ static UINT msi_unpublish_product(MSIPACKAGE *package)
     MSIREG_DeleteUserProductKey(package->ProductCode);
     MSIREG_DeleteUserDataProductKey(package->ProductCode);
     MSIREG_DeleteUserFeaturesKey(package->ProductCode);
+    MSIREG_DeleteUninstallKey(package->ProductCode);
 
 done:
     msi_free(remove);

dlls/msi/msipriv.h

@@ -729,6 +729,7 @@ extern BOOL squash_guid(LPCWSTR in, LPWSTR out);
 extern BOOL encode_base85_guid(GUID *,LPWSTR);
 extern BOOL decode_base85_guid(LPCWSTR,GUID*);
 extern UINT MSIREG_OpenUninstallKey(LPCWSTR szProduct, HKEY* key, BOOL create);
+extern UINT MSIREG_DeleteUninstallKey(LPCWSTR szProduct);
 extern UINT MSIREG_OpenUserProductsKey(LPCWSTR szProduct, HKEY* key, BOOL create);
 extern UINT MSIREG_OpenUserPatchesKey(LPCWSTR szPatch, HKEY* key, BOOL create);
 extern UINT MSIREG_OpenFeatures(HKEY* key);

dlls/msi/registry.c

@@ -504,6 +504,16 @@ UINT MSIREG_OpenUninstallKey(LPCWSTR szProduct, HKEY* key, BOOL create)
     return rc;
 }
 
+UINT MSIREG_DeleteUninstallKey(LPCWSTR szProduct)
+{
+    WCHAR keypath[0x200];
+    TRACE("%s\n",debugstr_w(szProduct));
+
+    sprintfW(keypath,szUninstall_fmt,szProduct);
+
+    return RegDeleteTreeW(HKEY_LOCAL_MACHINE, keypath);
+}
+
 UINT MSIREG_OpenUserProductsKey(LPCWSTR szProduct, HKEY* key, BOOL create)
 {
     UINT rc;