H2Reg.DLL, H2RegLib.DLL

We now ship a DLL version of H2Reg.exe.

• Return to H2Reg Home Page

License

• H2Reg.DLL is covered by the H2Reg license. Just like H2Reg.exe the DLL is free for personal use but you must purchase a H2Reg license if you want to ship the DLL to internal or external customers. For more details see the H2Reg Home Page.
• You may not use H2Reg.DLL to create a similar product, or any type of general registration type program. H2Reg.DLL can only be used to register help files as part your applications installation solution.
• If you have questions about licensing please contact us.

About

• H2Reg.DLL contains all the features of H2Reg.exe and is a similar size.
• This is a standard Windows DLL. It does not required ActiveX registration.
• There are 2 DLLs available. H2RegLib.DLL is very small and contains a suite of low-level registration commands. H2Reg.DLL also contains these commands as well as all the H2Reg.EXE script file support.
• The DLLs are not as popular as H2Reg.exe. They are typically used by experienced developers who need to code their own installation extensions.

DLL Functions

• The following functions are available in both DLLs (the last 2 functions in H2Reg.INI only).
• See the header file UMainFuncs.pas.txt for details of parameters and return codes.
• The DLLs use the Pascal calling convention. A Demo Test application written in Borland Delphi 6 has been included with the DLL download.

GetH2Ver(): PChar	Returns a version string x.x.x.x for MS Help 2. Return empty string if H2 not installed.
NSExists(nsName: PChar): Bool;	Returns true if MS Help 2 is found and the given Namespace exists.
Reg_Namespace(nsName...): Integer;	Register a Namespace.
Reg_Title(nsName...): Integer;	Register a Title under a Namespace.
Reg_PlugIn(nsName...): Integer;	Plug a child Namespace into a parent Namespace.
Reg_Filter(nsName...): Integer;	Register a filter.
UnReg_Filter(nsName...): Integer;	Unregister a Filter.
UnReg_PlugIn(nsName...): Integer;	Unregister a child plug-in.
UnReg_Title(nsName...): Integer;	Unregister a Title.
UnReg_Namespace(nsName...): Integer;	Unregister a Namespace.
NS_StartMergeFiles(nsName): Integer;	Merge a Namespace.
NS_IsMergeFilesBusy: Bool;	Are we still busy Merging a Namespace?
NS_IsMergePending(nsName): Bool;	Does a Namespace require merging?
RunScriptFile(file, flags): Integer;	Provides H2Reg.exe scripting functionality.

* The last two items are only available in H2Reg.DLL. They are not in the smaller H2RegLib.DLL.

Download

Note: The documentation does assume that you know what you are doing and are well experienced with the H2Reg.exe product and its documentation.

You can download the DLLs and associated document and demo files from here:
http://helpware.net/downloads/h2regdll.zip