INT File being Rejested, Application CreateFile() Call fails when trying to access the driver.

Hi Guys,

I am completely new windows drivers.
I have been doing Linux/RTOS drivers extensively but NOT windows until now. So, I read some docs extensively from MSDN about WDK before coming here.

I am trying to debug a Windows Vista Firewall (FE)driver written by someone else.

About the driver:
Ther driver is a simple IOCTL based drivers, NO Read, NO Write.  
He just registers the driver and IOCTL only. He also create a queue.
The driver is designed to support Vista 32-bit OS. I am testing in on the same.
Also it is a non-pnp driver. It does not have the AddDevice Call implemented. Everything is done just in the DriverEntry Call.

Problem 1:
Application CreateFile() call fails with Error "2", which means "There is no file present". (In Linux we see thios error if the driver is NOT loaded properly/failed at open time.)
So, I started reading the code and found problem 2. below.
 
Problem 2:
With What I read, I think this is a Device Installation Application type of loading a driver. link below.
     http://msdn.microsoft.com/en-us/library/dd419816.aspx

It is a Firewall client Application.
When I look into the code, I see that the application tries to find the waclient.sys driver in the system32/drivers folder.  And if it is NOT present, it gets the driver data which is embedded within the application with FindResource, LoadResouce Calls.
Then it creates a waclient.sys and copies the data into it.
Thats it.
 
They do nothing after it. Will the load the driver. I doubt what they do?
What else is needed in this case to load the driver??
 
Problem 3:
Understaing that there is a problem above, I wanted to try to load the driver manually "New Hardware" Wizard.
With What I have read from doc in the link below
http://www.microsoft.com/whdc/driver/wdf/KMDF-build.mspx

The driver code does not have a INX in it. So, not INF file is generated. So, I wrote a simple (may be completely wrong)  INF file by seeing the docs in the link below.
 
I created a directory on my "E:\test_drv", copied the
    waclient.sys file (checked build),
    waclient.inf (written by me)
    and the C:\WinDDK\6001.18002\redist\wdf\x86\WdfCoInstaller01007.
 
Ran the Windows New Hardware Wizard and point it to that Directory. It said
"The folder you specified does't contain a compatible software driver for your device.
  If the folder contains a driver, make sure it is designed to work with Windows for 32-bit systems."
 
What is wrong in my INF file that it comes with this message?
 
I might be missing some information you need. Please ask me. Am I missing anything. What else am I required to do to load the driver on my test system.
 
- Mukund Jampala
 

INT FILE
----------
[DestinationDirs]
waclientClassInstallerCopyFiles = 11
 
[waclient.NT.CoInstallers]
AddReg=waclient_CoInstaller_AddReg
CopyFiles= waclientClassInstallerCopyFiles
 
[waclient_CoInstaller_AddReg]
HKR,,CoInstallers32,0x00010007, "WdfCoInstaller01007.dll,WdfCoInstaller"
 
[waclient_CoInstaller_CopyFiles]
WdfCoInstaller01007.dll
 
[SourceDisksFiles]
WdfCoInstaller01007.dll=1 ;
 
[waclient.NT.Wdf]
KmdfService = waclient, waclient_wdfsect
[waclient_wdfsect]
KmdfLibraryVersion = 1.7

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