diff --git a/dll/msvcrt.cpp b/dll/msvcrt.cpp
index df078aa..822fa0a 100644
--- a/dll/msvcrt.cpp
+++ b/dll/msvcrt.cpp
@@ -1,9 +1,27 @@
 #include "common.h"
+#include "files.h"
+
+#include <string>
+#include <filesystem>
+#include <spawn.h>
+
+// from https://codebrowser.dev/glibc/glibc/sysdeps/x86/fpu_control.h.html
+#define _FPU_GETCW(cw) __asm__ __volatile__ ("fnstcw %0" : "=m" (*&cw))
+#define _FPU_SETCW(cw) __asm__ __volatile__ ("fldcw %0" : : "m" (*&cw))
 
 namespace msvcrt {
 	int _commode;
 	int _fmode;
 
+	int fpcntrl;
+
+	char **__initenv = NULL;
+
+	int mb_cur_max;
+
+	unsigned short int *pctype = NULL;
+	int __errno;
+
 	// Stub because we're only ever a console application
 	void WIN_FUNC __set_app_type(int at) {
 	}
@@ -15,6 +33,149 @@ namespace msvcrt {
 	int* WIN_FUNC __p__commode() {
 		return &_commode;
 	}
+
+	int WIN_ENTRY _spawnvp(int mode, char* cmdname, char** argv) {
+		DEBUG_LOG("_spawnvp: %s\n", cmdname);
+
+		setenv("WIBO_DEBUG_INDENT", std::to_string(wibo::debugIndent + 1).c_str(), true);
+
+		char *new_argv[]  = {cmdname};
+
+		pid_t pid;
+		if (posix_spawn(&pid, wibo::executableName, NULL, NULL, new_argv, environ)) {
+			return 0;
+		};
+
+		return 1;
+	}
+
+	unsigned int WIN_ENTRY _controlfp(unsigned int new_value, unsigned int mask) {
+		DEBUG_LOG("_controlfp called with value: 0x%X, mask: 0x%X\n", new_value, mask);
+
+		_FPU_GETCW(fpcntrl);
+		fpcntrl = ((fpcntrl & ~mask) | (new_value & mask));
+		_FPU_SETCW(fpcntrl);
+
+		return fpcntrl;
+	}
+
+	void WIN_ENTRY _initterm(void*, void*) {
+		 // do nothing
+	}
+
+	// _startupinfo*
+	int WIN_ENTRY __getmainargs(int* argc, char*** argv, char*** env, int doWildCard, void* startInfo) {
+		DEBUG_LOG("__getmainargs: %p, %p, %p, %i, %p\n", argc, argv, env, doWildCard, startInfo);
+		*argc = wibo::argc;
+		*argv = wibo::argv;
+
+		return 0; // success
+}
+
+	char ***WIN_ENTRY __p___initenv() {
+	  return &__initenv;
+	}
+
+	FILE* WIN_ENTRY __p__iob(void) {
+		return 0;
+	}
+
+	void WIN_ENTRY setbuf(FILE *stream, char *buffer) {
+
+	}
+
+	char** WIN_ENTRY __p__pgmptr(void) {
+		return (char**)malloc(1000000);
+	}
+
+	void WIN_ENTRY _splitpath(const char *c_path, char *drive, char *dir, char *fname, char *ext) {
+		DEBUG_LOG("_splitpath, path: %s, %p %p %p %p\n", c_path, drive, dir, fname,	ext);
+		// std::string str_path = std::string(c_path);
+
+		if (drive) {
+			// Drive letter, followed by a colon (:).
+			// You can pass NULL for this parameter if you don't need the drive letter.
+			strcpy(drive, "C:");
+		}
+		if (dir) {
+			// Directory path, including trailing slash. Forward slashes ( / ), backslashes ( \ ), or both may be used.
+			// You can pass NULL for this parameter if you don't need the directory path.
+			strcpy(drive, "/");
+		}
+		if (fname) {
+			// Base filename (no extension).
+			// You can pass NULL for this parameter if you don't need the filename.
+			strcpy(fname, "test");
+		}
+		if (ext) {
+			// Filename extension, including leading period (.).
+			// You can pass NULL for this parameter if you don't need the filename extension.
+			strcpy(ext, ".c");
+		}
+	}
+
+	int WIN_ENTRY _access(const char* path, int mode) {
+		DEBUG_LOG("_access, path: %s, mode: %i\n", path, mode);
+
+		// 0 = existence
+		// 2 = write-only
+		// 4 = read-only
+		// 6 = readowrite
+
+		return 0; // hope for the best
+	}
+
+	int WIN_ENTRY _ismbcgraph(unsigned int c) {
+		// Returns nonzero if and only if c is a single-byte representation of any ASCII or katakana printable character except a white space.
+		return 0;
+	}
+	int WIN_ENTRY _ismbcspace(unsigned int c) {
+		// Returns nonzero if and only if c is a white-space character: c=0x20 or 0x09<=c<=0x0D.
+		return c == 0x20 || 0x09 <= c || c <= 0x0D;
+	}
+
+	unsigned char* WIN_ENTRY _mbsinc(unsigned char* current) {
+		// DEBUG_LOG("_mbsinc\n");
+		// The _mbsinc function returns a pointer to the first byte of the multibyte character that immediately follows current.
+		return current + 1;
+	}
+
+	void WIN_ENTRY _mbccpy(unsigned char* dest, const unsigned char* src) {
+		// uhoh
+		// DEBUG_LOG("_mbccpy\n");
+		strcpy((char*)dest, (char*)src);
+	}
+
+	unsigned char* WIN_ENTRY _mbsdec(unsigned char* start, unsigned char* current) {
+		// DEBUG_LOG("_mbsdec\n");
+		// The _mbsdec function returns a pointer to the first byte of the multibyte character that immediately precedes current in the string that contains start.
+		return start - 1;
+	}
+
+	void WIN_ENTRY _makepath(char* path, char* drive, char* dir, char* fname, char *ext) {
+		DEBUG_LOG("_makepath: drive:%s, dir:%s fname:%s, ext:%s\n", drive, dir, fname, ext);
+		strcpy(path, "test.c");
+	}
+
+	int* WIN_ENTRY __p___mb_cur_max(void) {
+		DEBUG_LOG("__p___mb_cur_max\n");
+		return &mb_cur_max;
+	}
+
+	unsigned short ** WIN_ENTRY __p__pctype() {
+		DEBUG_LOG("__p__pctype\n");
+		if (pctype == NULL) {
+			pctype = (short unsigned int*)malloc(4);
+		}
+		return &pctype;
+	}
+
+	int* WIN_ENTRY _errno() {
+		return &__errno;
+	}
+
+
+
 }
 
 
@@ -22,6 +183,61 @@ static void *resolveByName(const char *name) {
 	if (strcmp(name, "__set_app_type") == 0) return (void *) msvcrt::__set_app_type;
 	if (strcmp(name, "__p__fmode") == 0) return (void *) msvcrt::__p__fmode;
 	if (strcmp(name, "__p__commode") == 0) return (void *) msvcrt::__p__commode;
+
+	if (strcmp(name, "_spawnvp") == 0) return (void *) msvcrt::_spawnvp;
+	if (strcmp(name, "_controlfp") == 0) return (void *) msvcrt::_controlfp;
+	if (strcmp(name, "_initterm") == 0) return (void *) msvcrt::_initterm;
+	if (strcmp(name, "__getmainargs") == 0) return (void *) msvcrt::__getmainargs;
+	if (strcmp(name, "__p___initenv") == 0) return (void *) msvcrt::__p___initenv;
+	if (strcmp(name, "__p__iob") == 0) return (void *) msvcrt::__p__iob;
+	if (strcmp(name, "setbuf") == 0) return (void *) msvcrt::setbuf;
+	if (strcmp(name, "__p__pgmptr") == 0) return (void *) msvcrt::__p__pgmptr;
+	if (strcmp(name, "_splitpath") == 0) return (void *) msvcrt::_splitpath;
+	if (strcmp(name, "_access") == 0) return (void *) msvcrt::_access;
+	if (strcmp(name, "_ismbcgraph") == 0) return (void *) msvcrt::_ismbcgraph;
+	if (strcmp(name, "_ismbcspace") == 0) return (void *) msvcrt::_ismbcspace;
+
+	if (strcmp(name, "__p___mb_cur_max") == 0) return (void *) msvcrt::__p___mb_cur_max;
+	if (strcmp(name, "__p__pctype") == 0) return (void *) msvcrt::__p__pctype;
+
+	if (strcmp(name, "_mbsinc") == 0) return (void *) msvcrt::_mbsinc;
+	if (strcmp(name, "_mbccpy") == 0) return (void *) msvcrt::_mbccpy;
+	if (strcmp(name, "_mbsdec") == 0) return (void *) msvcrt::_mbsdec;
+
+	if (strcmp(name, "_mbsstr") == 0) return (void *) strstr;
+	if (strcmp(name, "_mbschr") == 0) return (void *) strchr;
+	if (strcmp(name, "_mbsncmp") == 0) return (void *) strncmp;
+	if (strcmp(name, "_mbclen") == 0) return (void *) strlen; // FIXME
+
+	if (strcmp(name, "_dup2") == 0) return (void *) dup;
+	if (strcmp(name, "_mktemp") == 0) return (void *) mktemp;
+	if (strcmp(name, "_strdup") == 0) return (void *) strdup;
+	if (strcmp(name, "_stricmp") == 0) return (void *) strcmp;
+	if (strcmp(name, "_unlink") == 0) return (void *) unlink;
+	if (strcmp(name, "_write") == 0) return (void *) write;
+	if (strcmp(name, "exit") == 0) return (void *) exit;
+	if (strcmp(name, "fopen") == 0) return (void *) fopen;
+	if (strcmp(name, "fclose") == 0) return (void *) fclose;
+	if (strcmp(name, "free") == 0) return (void *) free;
+	if (strcmp(name, "getenv") == 0) return (void *) getenv;
+	if (strcmp(name, "malloc") == 0) return (void *) malloc;
+	if (strcmp(name, "memcpy") == 0) return (void *) memcpy;
+	if (strcmp(name, "memmove") == 0) return (void *) memmove;
+	if (strcmp(name, "memset") == 0) return (void *) memset;
+	if (strcmp(name, "strcat") == 0) return (void *) strcat;
+	if (strcmp(name, "strchr") == 0) return (void *) strchr;
+	if (strcmp(name, "strcmp") == 0) return (void *) strcmp;
+	if (strcmp(name, "strcpy") == 0) return (void *) strcpy;
+	if (strcmp(name, "strlen") == 0) return (void *) strlen;
+	if (strcmp(name, "strncpy") == 0) return (void *) strncpy;
+	if (strcmp(name, "strtoul") == 0) return (void *) strtoul;
+
+	if (strcmp(name, "_putenv") == 0) return (void *) putenv;
+	if (strcmp(name, "_flushall") == 0) return (void *) fflush;
+
+	if (strcmp(name, "_errno") == 0) return (void *) msvcrt::_errno;
+	if (strcmp(name, "_makepath") == 0) return (void *) msvcrt::_makepath;
+
 	return nullptr;
 }