Problems running code into .Net while working ok on visual basic programs

Dear All,

We are used to run following commands on visual basic, without any incidence:

Normal 0 21 false false false CA X-NONE X-NONE MicrosoftInternetExplorer4


This code calls an external dll from Sage software called Sage Murano www.sage.es/.../Sage_Murano to run some process inside ERP.

But, when we insert this code in .Net Visual C# it doesn't work.

Can someone of you help us about it? Are we writing something wrong?

Thank you in advance for your co-operation.