wd1021.cat contains the driver's Authenticode digital signature. To maintain the signature's validity this file must be found in the same installation directory as the windrvr6.inf file. If you select to distribute the catalog and INF files in different directories, or make any changes to these files or to any other files referred to by the catalog file (such as windrvr6.sys), you will need to do either of the following:

Install wdapi1021.dll:

 If your hardware control application/DLL uses wdapi1021.dll (as is the case for the sample and generated DriverWizard WinDriver projects), copy this DLL to the target's %windir%\system32 directory.

 If you are distributing a 32-bit application/DLL to a target 64-bit platform[A.2], rename wdapi1021_32.dll in your distribution package to wdapi1021.dll, and copy the renamed file to the target's %windir%\sysWOW64 directory.




Jungo WinDriver 1021 X86 X64