What tpes to use for char array?

This is from something I wrote 15 years ago.

Haven't use c since then

Wanted to use it now so I cut and pasted into VS2005 on WinXP

Now I can't seem to get the types OK

GetModuleFileName requires LPWCH for szModulePath

What are the compatible types??

Thanks

char szModulePath[SIZE_OF_PATH];

GetModuleFileName(happThisInstance, szModulePath, sizeof(szModulePath));
//Remove the FileName from the full pathname

PSTR pstr = szModulePath + lstrlen(szModulePath) - 1;

//note: '\\' is the character \ The first \ is a c language escape character

while ((*pstr != '\\') && (*pstr != ':') && (pstr >= szModulePath)) pstr--;

pstr++;

*pstr=(char)0;