Remote Desktop Software

General information for the business: Remote Desktop Monitoring software Kind of development: New program from scratch Description of every module: Hello, I am looking for Remote desktop software. Where unlimited Admin and Host. the software should work one pc to another pc local and Remote too(via internet ip even behind firewall). it should work all connection. no matter firewall or not. also it should have system id and temporary password(but we can fix the password). Most common feature should available. A admin server or if you come with better idea. You should have realistic budget. Description of requirements/functionality: PC Remote desktop selected or full area monitoring option . OS requirements: Windows