diff --git a/manifests/manage_virtual_application.pp b/manifests/manage_virtual_application.pp
index da7e50e..dc7462e 100644
--- a/manifests/manage_virtual_application.pp
+++ b/manifests/manage_virtual_application.pp
@@ -10,17 +10,17 @@
     }
 
     exec { "CreateVirtualApplication-${site_name}-${virtual_application_name}" :
-      command   => "${iis::param::powershell::command} -Command \"Import-Module WebAdministration; New-WebApplication -Name ${virtual_application_name} -Site ${site_name} -PhysicalPath ${site_path} -ApplicationPool ${app_pool}\"",
-      path      => "${iis::param::powershell::path};${::path}",
-      onlyif    => "${iis::param::powershell::command} -Command \"Import-Module WebAdministration; if((Test-Path \\\"IIS:\\Sites\\${site_name}\\${virtual_application_name}\\\")) { exit 1 } else { exit 0 }\"",
+      command   => "Import-Module WebAdministration; New-WebApplication -Name ${virtual_application_name} -Site \"${site_name}\" -PhysicalPath \"${site_path}\" -ApplicationPool \"${app_pool}\"",
+      onlyif    => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\${site_name}\") -and (Get-ChildItem \"IIS:\\Sites\\${site_name}\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq '${virtual_application_name}'})) { exit 1 } else { exit 0 }",
       require   => [ Iis::Createpath["${site_name}-${virtual_application_name}-${site_path}"], Iis::Manage_site[$site_name] ],
+      provider  => powershell,
       logoutput => true,
     }
   } else {
     exec { "DeleteVirtualApplication-${site_name}-${virtual_application_name}" :
-      command   => "${iis::param::powershell::command} -Command \"Import-Module WebAdministration; Remove-WebApplication -Name ${virtual_application_name} -Site ${site_name}\"",
-      path      => "${iis::param::powershell::path};${::path}",
-      onlyif    => "${iis::param::powershell::command} -Command \"Import-Module WebAdministration; if(!(Test-Path \\\"IIS:\\Sites\\${site_name}\\${virtual_application_name}\\\")) { exit 1 } else { exit 0 }\"",
+      command   => "Import-Module WebAdministration; Remove-WebApplication -Name ${virtual_application_name} -Site \"${site_name}\"",
+      onlyif    => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\${site_name}\") -and (Get-ChildItem \"IIS:\\Sites\\${site_name}\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq '${virtual_application_name}'})) { exit 0 } else { exit 1 }",
+      provider  => powershell,
       logoutput => true,
     }
   }
diff --git a/spec/defines/manage_virtual_application_spec.rb b/spec/defines/manage_virtual_application_spec.rb
index 6fd3508..5c02c77 100644
--- a/spec/defines/manage_virtual_application_spec.rb
+++ b/spec/defines/manage_virtual_application_spec.rb
@@ -11,11 +11,9 @@
         :app_pool => 'myAppPool.example.com',
     }}
 
-    it { should contain_class('iis::param::powershell') }
-
     it { should contain_exec('CreateVirtualApplication-myWebSite-mySite').with({
-      'command' => "#{powershell} -Command \"Import-Module WebAdministration; New-WebApplication -Name mySite -Site myWebSite -PhysicalPath C:\\inetpub\\wwwroot\\myHost -ApplicationPool myAppPool.example.com\"",
-      'onlyif'  => "#{powershell} -Command \"Import-Module WebAdministration; if((Test-Path \\\"IIS:\\Sites\\myWebSite\\mySite\\\")) { exit 1 } else { exit 0 }\"",
+      'command' => "Import-Module WebAdministration; New-WebApplication -Name mySite -Site \"myWebSite\" -PhysicalPath \"C:\\inetpub\\wwwroot\\myHost\" -ApplicationPool \"myAppPool.example.com\"",
+      'onlyif'  => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\myWebSite\") -and (Get-ChildItem \"IIS:\\Sites\\myWebSite\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq 'mySite'})) { exit 1 } else { exit 0 }",
     })}
   end
 
@@ -29,11 +27,26 @@
     }}
 
     it { should contain_exec('CreateVirtualApplication-myWebSite-mySite').with({
-      'command' => "#{powershell} -Command \"Import-Module WebAdministration; New-WebApplication -Name mySite -Site myWebSite -PhysicalPath C:\\inetpub\\wwwroot\\myHost -ApplicationPool myAppPool.example.com\"",
-      'onlyif'  => "#{powershell} -Command \"Import-Module WebAdministration; if((Test-Path \\\"IIS:\\Sites\\myWebSite\\mySite\\\")) { exit 1 } else { exit 0 }\"",
+      'command' => "Import-Module WebAdministration; New-WebApplication -Name mySite -Site \"myWebSite\" -PhysicalPath \"C:\\inetpub\\wwwroot\\myHost\" -ApplicationPool \"myAppPool.example.com\"",
+      'onlyif'  => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\myWebSite\") -and (Get-ChildItem \"IIS:\\Sites\\myWebSite\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq 'mySite'})) { exit 1 } else { exit 0 }",
     })}
   end
 
+describe 'when I create a virtual application in IIS on a site with spaces in the name' do
+  let(:title) { 'myVirtualApp' }
+  let(:params) {{
+      :site_name => 'My Web Site',
+      :site_path => 'C:\inetpub\wwwroot\myHost',
+      :app_pool => 'myAppPool.example.com',
+      :ensure => 'present',
+  }}
+
+  it { should contain_exec('CreateVirtualApplication-My Web Site-myVirtualApp').with({
+    'command' => "Import-Module WebAdministration; New-WebApplication -Name myVirtualApp -Site \"My Web Site\" -PhysicalPath \"C:\\inetpub\\wwwroot\\myHost\" -ApplicationPool \"myAppPool.example.com\"",
+    'onlyif'  => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\My Web Site\") -and (Get-ChildItem \"IIS:\\Sites\\My Web Site\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq 'myVirtualApp'})) { exit 1 } else { exit 0 }",
+  })}
+end
+
   describe 'when I create a virtual application in IIS and set ensure to installed' do
     let(:title) { 'mySite' }
     let(:params) {{
@@ -44,8 +57,8 @@
     }}
 
     it { should contain_exec('CreateVirtualApplication-myWebSite-mySite').with({
-      'command' => "#{powershell} -Command \"Import-Module WebAdministration; New-WebApplication -Name mySite -Site myWebSite -PhysicalPath C:\\inetpub\\wwwroot\\myHost -ApplicationPool myAppPool.example.com\"",
-      'onlyif'  => "#{powershell} -Command \"Import-Module WebAdministration; if((Test-Path \\\"IIS:\\Sites\\myWebSite\\mySite\\\")) { exit 1 } else { exit 0 }\"",
+      'command' => "Import-Module WebAdministration; New-WebApplication -Name mySite -Site \"myWebSite\" -PhysicalPath \"C:\\inetpub\\wwwroot\\myHost\" -ApplicationPool \"myAppPool.example.com\"",
+      'onlyif'  => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\myWebSite\") -and (Get-ChildItem \"IIS:\\Sites\\myWebSite\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq 'mySite'})) { exit 1 } else { exit 0 }",
     })}
   end
 
@@ -59,8 +72,8 @@
     }}
 
     it { should contain_exec('DeleteVirtualApplication-myWebSite-mySite').with({
-      'command' => "#{powershell} -Command \"Import-Module WebAdministration; Remove-WebApplication -Name mySite -Site myWebSite\"",
-      'onlyif'  => "#{powershell} -Command \"Import-Module WebAdministration; if(!(Test-Path \\\"IIS:\\Sites\\myWebSite\\mySite\\\")) { exit 1 } else { exit 0 }\"",
+      'command' => "Import-Module WebAdministration; Remove-WebApplication -Name mySite -Site \"myWebSite\"",
+      'onlyif'  => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\myWebSite\") -and (Get-ChildItem \"IIS:\\Sites\\myWebSite\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq 'mySite'})) { exit 0 } else { exit 1 }",
     })}
   end
 
@@ -74,8 +87,8 @@
     }}
 
     it { should contain_exec('DeleteVirtualApplication-myWebSite-mySite').with({
-      'command' => "#{powershell} -Command \"Import-Module WebAdministration; Remove-WebApplication -Name mySite -Site myWebSite\"",
-      'onlyif'  => "#{powershell} -Command \"Import-Module WebAdministration; if(!(Test-Path \\\"IIS:\\Sites\\myWebSite\\mySite\\\")) { exit 1 } else { exit 0 }\"",
+      'command' => "Import-Module WebAdministration; Remove-WebApplication -Name mySite -Site \"myWebSite\"",
+      'onlyif'  => "Import-Module WebAdministration; if((Test-Path \"IIS:\\Sites\\myWebSite\") -and (Get-ChildItem \"IIS:\\Sites\\myWebSite\" | where {\$_.Schema.Name -eq 'Application' -and \$_.Name -eq 'mySite'})) { exit 0 } else { exit 1 }",
     })}
   end
-end
\ No newline at end of file
+end