Software: x8051 Dos Assembler for 32 and 64 bit windows 7

Mediafire Link: http://www.mediafire.com/?k3eyidzn92wlyqh

Install Procedure:-

1. Unzip the x8051 for 7.

2. Install the DOSBox0.74-win32-installer.

3. Create a folder on C:\ , and rename it x8051.

4. Copy downloaded Link, x8051 Application File and paste it on C:\x8051.

5. Open DOSBox 0.74 from desktop.

6. Write dos commend 

          Z:\> mount d c:\x8051\ (Enter)

          Z:\>d: (Enter)

          D:\>x8051 (Enter)

7. Assemble your .asm file.