Low-Level Support Driver on Target Machines
- Updated2023-02-21
- 1 minute(s) read
The Runtime loads the low-level support driver if it is present when you start your executable. Several functions in the Utility Library, including CVILowLevelSupportDriverLoaded, require the low-level support driver.
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Note The low-level support driver is not supported on 64-bit systems. |
On 32-bit OSes, the installation program installs the low-level support driver in the \Windows\system32\drivers directory. The installation program also adds a registry entry under the following key:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\cvintdrv
The following table shows the values the installation program sets for the Windows registry entry for the low-level support driver.
| Type | Name | Value |
|---|---|---|
| DWORD | ErrorControl | 00000001 |
| String | Group | "Extended Base" |
| DWORD | Start | 00000002 |
| DWORD | Type | 00000001 |