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+InstDrv.dll version 0.2 - Installs or Removes Device Drivers
+------------------------------------------------------------
+
+
+The plugin helps you to create NSIS scripts for installing device drivers or
+removing them again. It can count installed device instances, create new ones
+or delete all supported device. InstDrv works on Windows 2000 or later.
+
+
+
+InstDrv::InitDriverSetup devClass drvHWID
+Return: result
+
+To start processing a driver, first call this function. devClass is the GUID
+of the device class the driver supports, drvHWID is the device hardware ID. If
+you don't know what these terms mean, you may want to take a look at the
+Windows DDK. This function returns an empty string on success, otherwise an
+error message.
+
+InitDriverSetup has to be called every time after the plugin dll has been
+(re-)loaded, or if you want to switch to a different driver.
+
+
+
+InstDrv::CountDevices
+Return: number
+
+This call returns the number of installed and supported devices of the driver.
+
+
+
+InstDrv::CreateDevice
+Return: result
+
+To create a new deviced node which the driver has to support, use this
+function. You may even call it multiple times for more than one instance. The
+return value is the Windows error code (in hex). Use CreateDevice before
+installing or updating the driver itself.
+
+
+
+InstDrv::InstallDriver infPath
+Return: result
+        reboot
+
+InstallDriver installs or updates a device driver as specified in the .inf
+setup script. It returns a Windows error code (in hex) and, on success, a flag
+signalling if a system reboot is required.
+
+
+
+InstDrv::DeleteOemInfFiles
+Return: result
+        oeminf
+        oempnf
+
+DeleteOemInfFiles tries to clean up the Windows inf directory by deleting the
+oemXX.inf and oemXX.pnf files associated with the drivers. It returns a
+Windows error code (in hex) and, on success, the names of the deleted files.
+This functions requires that at least one device instance is still present.
+So, call it before you remove the devices itself. You should also call it
+before updating a driver. This avoids that the inf directory gets slowly
+messed up with useless old setup scripts (which does NOT really accelerate
+Windows). The error code which comes up when no device is installed is
+"00000103".
+
+
+
+InstDrv::RemoveAllDevices
+Return: result
+        reboot
+
+This functions deletes all devices instances the driver supported. It returns
+a Windows error code (in hex) and, on success, a flag signalling if the system
+needs to be rebooted. You additionally have to remove the driver binaries from
+the system paths.
+
+
+
+InstDrv::StartSystemService serviceName
+Return: result
+
+Call this function to start the provided system service. The function blocks
+until the service is started or the system reported a timeout. The return value
+is the Windows error code (in hex).
+
+
+
+InstDrv::StopSystemService serviceName
+Return: result
+
+This function tries to stop the provided system service. It blocks until the
+service has been shut down or the system reported a timeout. The return value
+is the Windows error code (in hex).
+
+
+
+Example.nsi
+
+The example script installs or removes the virtual COM port driver of IrCOMM2k
+(2.0.0-alpha8, see www.ircomm2k.de/english). The driver and its setup script
+are only included for demonstration purposes, they do not work without the
+rest of IrCOMM2k (but they also do not cause any harm).
+
+
+
+Building the Source Code
+
+To build the plugin from the source code, some include files and libraries
+which come with the Windows DDK are required.
+
+
+
+History
+
+ 0.2    - fixed bug when calling InitDriverSetup the second time
+        - added StartSystemService and StopSystemService
+
+ 0.1    - first release
+
+
+
+License
+
+Copyright © 2003 Jan Kiszka (Jan.Kiszka@web.de)
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute
+it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; 
+   you must not claim that you wrote the original software.
+   If you use this software in a product, an acknowledgment in the
+   product documentation would be appreciated but is not required.
+2. Altered versions must be plainly marked as such,
+   and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any distribution.