MyCRM query strings and URL history / redirecting

Hello,

I have a problem with URL redirecting and / or query strings.

I have developed a custom Opportunity entry page in C# .NET. This page is accessible from the main menu as well as MyCRM>Opportunities.

When the list page is accessed in MyCRM>Opportunities and then Opportunity entry screen is accessed from the main menu or the list page you will be on the same page.

I tried to replace and / or add some query strings but it doesn't have any effect.

Could someone please explain to me how this works please?

Here are my URLs:

MyCRM -> http://95.83.242.160/CRM/eware.dll/Do?SID=57596557842065&Act=184&Mode=1&CLk=T&Key0=4&Key4=1&T=User&Capt=Opportunities

Entry Page -> http://95.83.242.160/CRM/eware.dll/Do?SID=57596557842065&Act=432&Mode=1&CLk=&Key0=4&Key4=1&dotnetdll=AirtechExpansion&dotnetfunc=RunOpportunityDataPageNew

I also posted a question here https://community.sagecrm.com/partner_community/f/73/t/11928.aspx explaining the issue in a more generalized way.

Any comments or suggestions are very welcome. Thank you.