diff --git a/PacticeSolution/PacticeSolution.sln b/PacticeSolution/PacticeSolution.sln
index fef066b..04e0a0d 100644
--- a/PacticeSolution/PacticeSolution.sln
+++ b/PacticeSolution/PacticeSolution.sln
@@ -63,11 +63,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DataTriggerSample", "DataTr
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ListBoxLinqBindingSample", "ListBoxLinqBindingSample\ListBoxLinqBindingSample.csproj", "{DE5F5671-AB82-4F9E-879A-6FF1FFC49D26}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DependencyPropertySample2", "DependencyPropertySample2\DependencyPropertySample2.csproj", "{AC4DAD4D-BBAB-4E0B-9BB6-5124592BA365}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DependencyPropertySample2", "DependencyPropertySample2\DependencyPropertySample2.csproj", "{AC4DAD4D-BBAB-4E0B-9BB6-5124592BA365}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ExternalProgramBatcher", "ExternalProgramBatcher\ExternalProgramBatcher.csproj", "{E2F9A793-59D7-4BE1-8239-059352C3E520}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ExternalProgramBatcher", "ExternalProgramBatcher\ExternalProgramBatcher.csproj", "{E2F9A793-59D7-4BE1-8239-059352C3E520}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WpfApp1", "WpfApp1\WpfApp1.csproj", "{1664EE53-F26A-4590-AAC9-7276C0D97DE6}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ExternalProgramBatcher_VFrameWork", "WpfApp1\ExternalProgramBatcher_VFrameWork.csproj", "{1664EE53-F26A-4590-AAC9-7276C0D97DE6}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
diff --git a/PacticeSolution/WpfApp1/WpfApp1.csproj b/PacticeSolution/WpfApp1/ExternalProgramBatcher_VFrameWork.csproj
similarity index 100%
rename from PacticeSolution/WpfApp1/WpfApp1.csproj
rename to PacticeSolution/WpfApp1/ExternalProgramBatcher_VFrameWork.csproj