opnet运行的错误

我的系统是win7的，在xp虚拟机上安装了opnet14.5+vs2005，之前运行的好好的。中
间由于
需要将vs2005卸了一次，安装了vc6.0。。
现在又需要用opnet了，就又安装了vs2005，环境变量又重新配置了一把。但一样的
程序现
在就跑不了了，出现的问题如下：
<<< Recoverable Error >>>
Object repository construction failed
due to errors encountered by the binder program (bind_so_msvc)
T (0), EV (-), MOD (NONE)
----
Errors reported by the binder program follow
(these messages have been saved in (C:\Documents and Settings\XPMUser\op_admin
\tmp\bind_err_3892):
h_pce.opt32.i0.pr.obj : warning LNK4044: unrecognized option "manifestdependency
:type='win32' name='Microsoft.VC80.CRT' version='8.0.50608.0' processorArchitecture
='x86' publicKeyToken='1fc8b3b9a1e18e3b'"; ignored
。。。此处省略多个类似的warning。。
   Creating library C:\Documents and Settings\XPMUser\op_models\op_pce.project
\op_pce-scenario1.opt32.i0.nt.lib and object C:\Documents and Settings\XPMUser
\op_models\op_pce.project\op_pce-scenario1.opt32.i0.nt.exp
msvcrt.lib(crtdll.obj) : error LNK2001: unresolved external symbol __pRawDllMain
msvcrt.lib(dllmain.obj) : error LNK2001: unresolved external symbol __pRawDllMain
C:\Documents and Settings\XPMUser\op_models\op_pce.project\op_pce-scenario1
.opt32.i0.nt.dll : fatal error LNK1120: 1 unresolved externals
----
<<< Program Abort >>>
Error encountered rebuilding repository -- unable to proceed
T (0), EV (-), MOD (NONE)
opnet真是崩溃，这些东西不怎么能看懂，版上有人知道的吗？
谢谢。。

就用vc6好了，折腾这个干啥呀。