Cool Piece Of Code In C++

[gloworange]************THIS C++ CODE BELONGS TO Th3 SpIdER********************** [/gloworange]

Heres a simple method to make a basic encryption program in C++ for simple file encryption. any suggestions.......
i have include the compiled program also as encrypt.zip

#include<fstream.h>
#include<string.h>
#include<conio.h>
void printerror(int);
enum{infileerr,outfileerr,passworderr};
int main(int argc, char* argv[])

{

clrscr();
int fileno=1;
char infilename[255];
char outfilename[255];
char password[255];
char ch;
cout<<"\t\t\t------------------------------\n";
cout<<"\t\t\t Spider File Encrytion System\n";
cout<<"\t\t\tWritten by Faizan Bashir - HbK\n";
cout<<"\t\t\t------------------------------\n\n";
do //Start for here

{

//--------------------------------------
//
// -------------------------------------
// ---
//
//Take care of infile
++fileno;
cout<<"Enter path of file to be encrypted/decrypted: ";
if (argc<2)

{
cin.getline(infilename,255);
}
else

{
strcpy(infilename,argv[fileno-1]);
cout<<infilename<<"\n";
}
ifstream infile(infilename,ios::binary); //prepare infile.
if (!infile)

{
printerror(infileerr);
return -1;
}
cout<<"\nEnter Name of destination file: ";
cin.getline(outfilename,255);
ofstream outfile(outfilename,ios::binary); //prepare outfile.
if (!outfile)

{
printerror(outfileerr);
return -1;
}
//--------------------------------------
//
// -------------------------------------
// ---
//
//Take care of password
cout<<"\n\nPassword: ";
for (int i2=0;i2<255;i2++)password[i2]='§';
cin.getline(password,255);
int endofstr;
char passwordcopy[255];
for (int i1=0;i1<255;i1++)

{
if(password[i1]=='\0')break;
endofstr=i1;
}
strcpy(passwordcopy,password);
for (int i=endofstr;i>=0;i--)

{
password[endofstr-i]=password[endofstr-i]&(~passwordcopy[i]);
}
//--------------------------------------
//
// -------------------------------------
// ---
//
//Encrpyt infile
int index=0;
while((infile.read((char*)&ch,sizeof(ch))))

{
if (password[index]=='\0') index=0;
ch=(password[index])^ch; //xor it
outfile.write((char*)&ch,sizeof(ch));
index+=1;
}
//--------------------------------------
//
// -------------------------------------
// ---
//
//Final messages
infile.close();
outfile.close();
cout<<"\n|The Encryption/Decryption operation has been successfully completed|\n\n\n";

} //End for here
while(fileno<argc);
while ((ch=cin.get())!=ch){cout<<"";}
return 0;
}
void printerror(int error)

{
char ch;
switch(error)

{

case infileerr:{
cout<<"\nError: File not found\n";

break;
}

case outfileerr:{
cout<<"\nError: Unable to create destination file\n";

break;
}

case passworderr:{
cout<<"\nError: Invalid password\n";

break;
}
}
while ((ch=cin.get())!=ch){cout<<"";}
}

_________________________________
any suggestion??????