Bluetooth HC-05 Library for Proteus
I don't know Proteus, but I think HC05 a bluetooth module? If so, the module interface from HC05 &lt;==> arduino is done through Serial (UART) communication. 
Arduino has built in support for this - you don't need any special libraries besides SoftwareSerial.
wire up the module as such:


Then run the following code:

#include &lt;SoftwareSerial.h&gt;

#define rxPin 10 // connected to TX pin of HC05
#define txPin 11 // connected to RX pin of HC05

SoftwareSerial mySerial(rxPin, txPin); // RX, TX
char bt; 

void setup() {
  Serial.begin(9600);   
  Serial.println("Hello");

  mySerial.begin(9600);
  mySerial.println("World");
}

void loop(){
  while(mySerial.available()){
    bt = mySerial.read();
    Serial.print(bt);
  }

  while(Serial.available()){
   bt= Serial.read();
   mySerial.print(bt);
  }
}