SetEnvironmentVariable(hook_name, cmd);\r
}\r
else {\r
- GetEnvironmentVariable(hook_name, cmd, _countof(cmd));\r
+ if (! GetEnvironmentVariable(hook_name, cmd, _countof(cmd))) cmd[0] = _T('\0');\r
SetDlgItemText(tablist[NSSM_TAB_HOOKS], IDC_HOOK, cmd);\r
}\r
}\r