I apologize if this is answered elsewhere. So far (thanks to a post from Rob Mensching), my code will detect .NET 4.0 if it's installed and it'll pass right over it. I'm not able to correctly detect Microsoft Visual C++ 2010 x86 Redistributable OR Microsoft SQL Server Compact 3.5 Service Pack 2.
My code is below. I'm learning, so I would appreciate as much constructive criticism as possible.
<!--Search for .NET 4.0-->
<util:RegistrySearch Id="NETFRAMEWORK40"
Root="HKLM"
Key="SOFTWARE\Microsoft\Net Framework Setup\NDP\v4\Full"
Value="Install"
Variable="NETFRAMEWORK40"
Result="value"/>
<!--Search for Microsoft Visual C++ 2010 x86 Redistributable-->
<util:RegistrySearch Id="SearchForCPP2010X86"
Root="HKLM"
Key="SOFTWARE\Microsoft\VisualStudio\10.0\VC\VCRedist\x86"
Value="Install"
Variable="CPP2010Redist"
Result="exists"/>
<!--Search for Microsoft SQL Server Compact 3.5 Service Pack 2-->
<util:RegistrySearch Id="SearchForSQLSvrCE35SP2"
Root="HKLM"
Key="SOFTWARE\Microsoft\Microsoft SQL Server Compact Edition\v3.5\ENU"
Value="Install"
Variable="SQLSvrCE35SP2"
Result="exists"/>
<Chain>
<!-- Install .Net 4
Full -->
<PackageGroupRef Id="Net4Full"/>
<!-- Install Microsoft Visual C++ 2010 x86 Redistributable -->
<PackageGroupRef Id="MSVisCPP2010x86Redist"/>
<!-- Install Microsoft SQL Server Compact 3.5 Service Pack 2 -->
<PackageGroupRef Id="SQLExpressCE"/>
</Chain>
<!--Install .NET 4.0-->
<PackageGroup Id="Net4Full">
<ExePackage Id="Net4Full"
Name="Microsoft .NET Framework 4.0 Setup"
Cache="no"
Compressed="yes"
PerMachine="yes"
Permanent="yes"
Vital="yes"
SourceFile="BootstrapperLibrary\dotNetFx40_Full_setup.exe"
DetectCondition="NETFRAMEWORK40"/>
</PackageGroup>
<!--Install Microsoft Visual C++ 2010 x86 Redistributable-->
<PackageGroup Id="MSVisCPP2010x86Redist">
<ExePackage Id="MSVisCPP2010x86Redis"
Name="Microsoft Visual C++ 2010 x86 Redistributable "
Cache="no"
Compressed="yes"
PerMachine="yes"
Permanent="yes"
Vital="yes"
SourceFile="BootstrapperLibrary\vcredist_x86.exe"
DetectCondition="CPP2010Redist"/>
</PackageGroup>
<!--Install Microsoft SQL Server Compact 3.5 Service Pack 2-->
<PackageGroup Id="SQLExpressCE">
<ExePackage Id="SQLExpressCE"
Name="Microsoft SQL Server Compact 3.5 Service Pack 2 Setup"
Cache="no"
Compressed="yes"
PerMachine="yes"
Permanent="yes"
Vital="yes"
SourceFile="BootstrapperLibrary\SSCERuntime-ENU.exe"/>
</PackageGroup>
