diff --git a/lib/coproc.C b/lib/coproc.C
index 69db4338f7..328f383be8 100644
--- a/lib/coproc.C
+++ b/lib/coproc.C
@@ -36,7 +36,6 @@ void COPROC_CUDA::get(COPROCS& coprocs) {
    void (*__cudaGetDeviceCount)( int * );
    void (*__cudaGetDeviceProperties) ( cudaDeviceProp*, int );
    int count;
-   cudaDeviceProp prop;
 
 #ifdef _WIN32
    HMODULE cudalib = GetModuleHandle("cudart.dll");
@@ -76,8 +75,8 @@ void COPROC_CUDA::write_xml(FILE* f) {
         "   <warpSize>%d</warpSize>\n"
         "   <memPitch>%u</memPitch>\n"
         "   <maxThreadsPerBlock>%d</maxThreadsPerBlock>\n"
-        "   <maxThreadsDim>%d</maxThreadsDim>\n"
-        "   <maxGridSize>%d</maxGridSize>\n"
+        "   <maxThreadsDim>%d %d %d</maxThreadsDim>\n"
+        "   <maxGridSize>%d %d %d</maxGridSize>\n"
         "   <totalConstMem>%u</totalConstMem>\n"
         "   <major>%d</major>\n"
         "   <minor>%d</minor>\n"
@@ -91,8 +90,8 @@ void COPROC_CUDA::write_xml(FILE* f) {
         prop.warpSize,
         prop.memPitch,
         prop.maxThreadsPerBlock,
-        prop.maxThreadsDim,
-        prop.maxGridSize,
+        prop.maxThreadsDim[0], prop.maxThreadsDim[1], prop.maxThreadsDim[2],
+        prop.maxGridSize[0], prop.maxGridSize[1], prop.maxGridSize[2],
         prop.totalConstMem,
         prop.major,
         prop.minor,
diff --git a/win_build/libboinc.vcproj b/win_build/libboinc.vcproj
index 389cc9b2ce..21bf0ceac9 100644
--- a/win_build/libboinc.vcproj
+++ b/win_build/libboinc.vcproj
@@ -477,6 +477,10 @@
 				RelativePath="..\lib\base64.C"
 				>
 			</File>
+			<File
+				RelativePath="..\lib\coproc.C"
+				>
+			</File>
 			<File
 				RelativePath="..\lib\crypt.C"
 				>
@@ -715,6 +719,10 @@
 				RelativePath="..\lib\boinc_win.h"
 				>
 			</File>
+			<File
+				RelativePath="..\lib\coproc.h"
+				>
+			</File>
 			<File
 				RelativePath="..\lib\crypt.h"
 				>