You may have a need to redirect from a custom page written using the COM ASP API to a .NET assembly.
I have written about redirecting from COM ASP page before in the article "Redirecting to an ASPX (ASP .NET) Page from a Classic COM ASP page"
The code below shows how a URL for the redirect can be created.
To demonstrate the redirection I have created a custompage and added it to the company tab. All the page does is redirect to the relationship tab in the same context.
"RelatedEntities.dll-RunREList")); %>
The method CRM.URL() is passed the name of the dll and the name of the public method and generates the full URL that contains the current context.
e.g.
http://localhost/CRM/eware.dll/Do?SID=160709231433869 &Act=432 &Mode=1 &CLk=T &Key0=1 &Key1=28 &Key2=30 &Key4=28 &dotnetdll=RelatedEntities.dll &dotnetfunc=RunREList
An alternative way is to call the system action and append the variables that indicate the DLL and Method to use.
" &dotnetdll=RelatedEntities &dotnetfunc=RunREList"); %>
But you can also add your own parameters to the URL
"RelatedEntities.dll-RunREList")+" &wibble=flange"); %>
These extra parameters will be added to the URL
e.g.
http://localhost/CRM/eware.dll/Do?SID=160709231433869 &Act=432 &Mode=1 &CLk=T &Key0=1 &Key1=28 &Key2=30 &Key4=28 &dotnetdll=RelatedEntities.dll &dotnetfunc=RunREList &wibble=flange
Within the .NET code the parameters can be read by the Dispatch.QueryField() or Dispatch.EitherField() methods.