32-bit or 64-bit setting for Wix Installation

<Component Id = "Component1" Guid = "*">
<! [CDATA [Not VersionNT64]>
<File Id = "File1" Name = "1.dll" Source =" c: \ dlls \ 1.dll"/>
</Component>
<Component Id = "Component2" Guid = "*">
<! [CDATA [VersionNT64]>
<File Id = "File2" Name = "2.dll" Source =" c: \ dlls \ 2.dll"/>
</Component>
Or
 

[Html]
<Component Id = "DPInst_x32" Guid = "PLACE-YOUR-GUID-HERE">
<File Id = "DPInst.exe _ x32" Name = "DPInst.exe" LongName = "DPInst.exe"
Vital = "yes" DiskId = "1" src = "C: \ DPInst \ x32 \ DPInst.exe"/>
<Condition> NOT VersionNT64 </Condition>
</Component>
 
<Component Id = "DPInst_x64" Guid = "PLACE-YOUR-GUID-HERE">
<File Id = "DPInst.exe _ x64" Name = "DPInst.exe" LongName = "DPInst.exe"
Vital = "yes" DiskId = "1" src = "C: \ DPInst \ x64 \ DPInst.exe"/>
<Condition> VersionNT64 </Condition>
</Component>

[Html]
<Feature Id = 'dpinst _ x32' Level = '0' AllowAdvertise = "no"
Absent = "disallow" Display = "hidden">
<ComponentRef Id = 'dpinst _ x32'/>
<Condition Level = "1"> NOT VersionNT64 </Condition>
</Feature>
 
<Feature Id = 'dpinst _ x64 'Level = '0' AllowAdvertise = "no"
Absent = "disallow" Display = "hidden">
<ComponentRef Id = 'dpinst _ x64 '/>
<Condition Level = "1"> VersionNT64 </Condition>
</Feature>
If it is an NT system, do not install
<Condition Message = "This application is only supported on Windows Vista, Windows Server 2008, or higher.">
<! [CDATA [Installed OR (VersionNT >=600)]>
</Condition>