Zjišťujete, zda je nainstalován SQL Server Compact Edition 3.5 SP2 x64?

x64 systém s nainstalovaným pouze x86 runtime:

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SQL Server Compact Edition\v3.5\ENU]
"DesktopRuntimeVersion"="3.5.8080.0"
"DesktopRuntimeServicePackLevel"="2"

x64 systém s nainstalovanými x86 i x64:

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SQL Server Compact Edition\v3.5\ENU]
"DesktopRuntimeVersion"="3.5.8080.0"
"DesktopRuntimeServicePackLevel"="2"
"DesktopRuntimeVersion_x64"="3.5.8080.0"