Prerequisites:
tested on visual studio pro 2013 and windows 8 / 2012
First, create a new vb / c# project com class component.
Then go to
project properties,
Application tab >
assembly information > Check
Make Assembly com visible
Compile tab
Check
Register for com interop
(makesure to sign your app, otherwise you cant register with gac)
Signing tab >
Sign the assembly > Create a password
Okay, now to solution explorer on the right side,
Right click on solution and add item
Common items > Code > Com Class
Declare your class with method required,
Remember this class will be visible from outside.
When done building your project,
Go to Build > Build [your projectname]
goto start, find for
visual studio tools
run
VS2013 x64 Native Tools Command Prompt
(please take note that this is x64 environment).
So we need to run regasm and gacutil from x64 tools, not the default 32bits
Then
cd \yourprojectpath\yourclass\bin\Debug\
regasm yourfile.dll
(need to sign assembly)
gacutil -i yourfile.dll
Then you may check if your registry is registered by calling
regedit
HKLocal Machine > Software > Classes > YourProjectname.YourObject
okay, then restart iis. and test your dll in asp:
<%
dim foo
set foo = Server.CreateObject("YourProjectname.YourObject")
dim pass
pass = "abA2356!"
if foo.ValidatePassword(pass) then
Response.Write "all ok!"
else
response.Write "not ok!"
end if
%>
other references:
http://forums.iis.net/t/1183338.aspx?Calling+NET+DLL+from+classic+ASP
