BSOD opening directcom error StackHash_ddf7

Hi,I install directcom program for com emulator,
here is software web,

Code:

SPIRIX Electronics Company / DirectCOM page

When I open it,
It open very slowly and after that It show this error,

UFSx Direct Communicator has stopped working.

error details,

Problem Event Name: APPCRASH
Application Name: DirectCOM.exe
Application Version: 1.1.5.1
Application Timestamp: 00000000
Fault Module Name: StackHash_ddf7
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: 00000000
Exception Offset: 00000000
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033
Additional Information 1: ddf7
Additional Information 2: ddf7c9945039d5c268b72e7b771b4a18
Additional Information 3: d30e
Additional Information 4: d30ed1be152cf772ada729747b8cd663

And program closed,
What is the problem and how can I repair it??
Help me...
Thanx.....

That program doesn't appear to be compatible with Windows 7, the website clearly states that it it certified to work on Win9x/NT4/NT5/Win2000 & XP only.

The program itself hasn't been updated for more than 5 Years so obviously you cannot expect such an ancient software to work without problems. Try Compatibility Mode
If that isn't successful you should contact the vendor for an updated version