ASP.Net communication with an external process

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.NET2.0

Hi,

We have an ASP.Net application from where we are starting a process (Process A). The standard process communicates with another application (Process B). Process B start by Process A. All are running in the same machine .Net framework 3.5 IIS 7, Process A & B are not .Net applications.

All these working fine when run it from VS IDE’s on a local server. By that time, the process A, process B running as the local user account. But when publish the project in IIS, the process A started as “System” and then can’t communicate with process B and gives errors. We have tried giving all permission to the folders where the exe files resides.

We have edited the process model in the machine config with username of the local user. We have tried impersonating the local user which works external to IIS still no go. Any help is appreciated.

Posted 26-May-11 1:59am

avidKrish

Updated 26-May-11 2:02am

E.F. Nijboer

v2

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E.F. Nijboer · Answer 1 · 2011-05-26T02:16:00

The reason why impersonation didn't work is because you impersonated a local user account but that is not a system account.

"Change the account that the Aspnet_wp.exe process runs under to the System account in the <processmodel> configuration section of the Machine.config file."
http://support.microsoft.com/kb/306158[^]

You could also consider socket based IPC for example. If you cannot change process A and B itself you could create an adapter or wrapper process that is executed as "System". You'll get: .NET application --(IPC:Socket)-> adapter process --(IPC:?)-> Process A

Good luck!