...(続き)... まとめると
unknown Func7C8FF2D3(unknown p1)
{
eax = PathIsUNCW(p1);
if (eax)
{
Label_7C8FF2EA:
eax = 1;
Label_7C8FF2ED:
return eax;
}
eax = PathGetDriveNumberW(p1);
if (eax == -1)
goto Label_7C8FF412;
if (((const WORD *)p1)[2] == 0x5C)
goto Label_7C8FF2EA;
Label_7C8FF412:
eax = 0;
goto Label_7C8FF2ED;
}

整理すると
BOOL Func7C8FF2D3(LPCWSTR path)
{
if (PathIsUNCW(path))
return TRUE;
if (PathGetDriveNumberW(path) == -1)
return FALSE;
return (path[2] == L'\\');
}
となる。逆コンパイル完了。 □